Shyam Sunder Gupta

IRSE, FIE, Ex Principal Chief Engineeer, Indian Railways,
Author of books:Creative Puzzles to Ignite Your Mind and Exploring the Beauty of Fascinating Numbers.

[Shyam Sunder Gupta @NumbersByShyam]

@mathhub_vn Apart from trivial 1, the only Munchhausen number in base 10, is 3435.

3435=3^3+4^4+3^3+5^5

For more on Munchhausen, Friedman, printer error numbers etc.,

Refer "Exploring the Beauty of Fascinating Numbers" published by Springer(March 25).

https://t.co/oPRIwDzUwu

[Shyam Sunder Gupta @NumbersByShyam]

@PhysInHistory Sum of digits of 2^5 is 5.
Sum of digits of 2^70 is 70.

For more such gems and curiosities, refer the book " Exploring the Beauty of Fascinating Numbers" published by Springer in March 25.

https://t.co/oPRIwDzUwu

[Shyam Sunder Gupta @NumbersByShyam]

470511577514952 =
(47051 + 15775 + 14952)^3

For more,
Refer "Exploring the Beauty of Fascinating Numbers" published by Springer(March 25).

https://t.co/oPRIwDzUwu

[Shyam Sunder Gupta @NumbersByShyam]

@Math_files Tha number of divisors of a perfect number is always even.
All 52 currently known Mersenne primes and perfect numbers along with curious properties are given in the book
"Exploring the Beauty of Fascinating Numbers" published by Springer.

https://t.co/oPRIwDzUwu

[Shyam Sunder Gupta @NumbersByShyam]

Best sellers Rank (6 June 26) on https://t.co/X0uVAigtaC:

"Exploring the Beauty of Fascinating Numbers" published by Springer(March 25).

https://t.co/oPRIwDzUwu

[Shyam Sunder Gupta @NumbersByShyam]

The smallest amicable pair (m, n) in which both m and n taken together contain all the digits from 0 to 9 is (24472180, 30395276).

Refer "Exploring the Beauty of Fascinating Numbers" published by Springer(March 25).

https://t.co/oPRIwDzUwu

[Shyam Sunder Gupta @NumbersByShyam]

Solve
(x^2-9x+19)^(x^2-15x+56)=1
and find ALL possible integer values of x.

Refer, "Creative Puzzles to Ignite Your Mind" published by Springer (March 23) and featured in The Guardian (UK).

https://t.co/4qlt7253dl

https://t.co/3ucogOmxzm

[Shyam Sunder Gupta @NumbersByShyam]

The book
"Creative Puzzles to Ignite your mind" published by Springer was featured in The Guardian (UK).

https://t.co/3ucogOmxzm

[Shyam Sunder Gupta @NumbersByShyam]

@PhysInHistory Sum of digits of 2^5 is 5.
Sum of digits of 2^70 is 70.

For more such gems and curiosities, refer the book " Exploring the Beauty of Fascinating Numbers" published by Springer in March 25.

https://t.co/oPRIwDzUwu

[Shyam Sunder Gupta @NumbersByShyam]

The book
"Creative Puzzles to Ignite your mind" published by Springer was featured in The Guardian (UK).

https://t.co/3ucogOmxzm

[Shyam Sunder Gupta @NumbersByShyam]

Best sellers Rank (6 June 26) on https://t.co/X0uVAigtaC:

"Exploring the Beauty of Fascinating Numbers" published by Springer(March 25).

https://t.co/oPRIwDzUwu

[Shyam Sunder Gupta @NumbersByShyam]

470511577514952 =
(47051 + 15775 + 14952)^3

For more,
Refer "Exploring the Beauty of Fascinating Numbers" published by Springer(March 25).

https://t.co/oPRIwDzUwu

[Shyam Sunder Gupta @NumbersByShyam]

@mathhub_vn Apart from trivial 1, the only Munchhausen number in base 10, is 3435.

3435=3^3+4^4+3^3+5^5

For more on Munchhausen, Friedman, printer error numbers etc.,

Refer "Exploring the Beauty of Fascinating Numbers" published by Springer(March 25).

https://t.co/oPRIwDzUwu

[Shyam Sunder Gupta @NumbersByShyam]

Solve
(x^2-9x+19)^(x^2-15x+56)=1
and find ALL possible integer values of x.

Refer, "Creative Puzzles to Ignite Your Mind" published by Springer (March 23) and featured in The Guardian (UK).

https://t.co/4qlt7253dl

https://t.co/3ucogOmxzm

[Shyam Sunder Gupta @NumbersByShyam]

All numbers in the following infinite sequence are triangular numbers:

45, 2415, 224115, 22241115, …

For more,
Refer "Exploring the Beauty of Fascinating Numbers" published by Springer(March 25).

https://t.co/oPRIwDzUwu

[Shyam Sunder Gupta @NumbersByShyam]

Interesting sum of two triangular numbers:

T(10614) + T(44835) = 1061444835

For more,
Refer "Exploring the Beauty of Fascinating Numbers" published by Springer(March 25).

https://t.co/oPRIwDzUwu

[Shyam Sunder Gupta @NumbersByShyam]

There do not exist four distinct triangular numbers in arithmetic progression.

For more,
Refer "Exploring the Beauty of Fascinating Numbers" published by Springer(March 25).

[Shyam Sunder Gupta @NumbersByShyam]

There do not exist four distinct triangular numbers in geometric progression.

For more,
Refer "Exploring the Beauty of Fascinating Numbers" published by Springer(March 25).

https://t.co/oPRIwDzUwu

[Shyam Sunder Gupta @NumbersByShyam]

The book "Creative Puzzles to Ignite your mind" published by Springer (March 23) ) is of immense value for aspirants of Math Olympiad, CAT/MBA and job interviews of big companies like Google, Microsoft, Amazon, Apple, NVidia, Oracle, Adobe, etc.

https://t.co/4LhXytgYeQ

[Shyam Sunder Gupta @NumbersByShyam]

Pleasant memories of Joyful moments at 16th Gathering 4 Gardner Conference G4G16 (2026) at San Francisco (USA):

https://t.co/JTsWywi1dx