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38631013135 = 5111354029389
BaseRepresentation
bin100011111110100101…
…100111101100001111
310200201021001210120021
4203332211213230033
51113104014410020
625425152403011
72535212123311
oct437645475417
9120637053507
1038631013135
1115424221a40
1275a1546467
133848571c70
141c2684d7b1
15101171b1aa
hex8fe967b0f

38631013135 has 16 divisors (see below), whose sum is σ = 54461625120. Its totient is φ = 25934106240.

The previous prime is 38631013121. The next prime is 38631013139. The reversal of 38631013135 is 53131013683.

It is not a de Polignac number, because 38631013135 - 219 = 38630488847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38631013135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38631013139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27013980 + ... + 27015409.

It is an arithmetic number, because the mean of its divisors is an integer number (3403851570).

Almost surely, 238631013135 is an apocalyptic number.

38631013135 is a deficient number, since it is larger than the sum of its proper divisors (15830611985).

38631013135 is a wasteful number, since it uses less digits than its factorization.

38631013135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54029418.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 38631013135 in words is "thirty-eight billion, six hundred thirty-one million, thirteen thousand, one hundred thirty-five".

Divisors: 1 5 11 13 55 65 143 715 54029389 270146945 594323279 702382057 2971616395 3511910285 7726202627 38631013135