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38177808137 = 7192393793169
BaseRepresentation
bin100011100011100100…
…110001111100001001
310122112200021121011222
4203203210301330021
51111142004330022
625312202531425
72521040005040
oct434344617411
9118480247158
1038177808137
1115211417357
127495806b75
1337a56c2521
141bc2599557
15ed6a48242
hex8e3931f09

38177808137 has 32 divisors (see below), whose sum is σ = 46256640000. Its totient is φ = 30780642816.

The previous prime is 38177808121. The next prime is 38177808167. The reversal of 38177808137 is 73180877183.

It is not a de Polignac number, because 38177808137 - 24 = 38177808121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38177808167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12045689 + ... + 12048857.

It is an arithmetic number, because the mean of its divisors is an integer number (1445520000).

Almost surely, 238177808137 is an apocalyptic number.

It is an amenable number.

38177808137 is a deficient number, since it is larger than the sum of its proper divisors (8078831863).

38177808137 is a wasteful number, since it uses less digits than its factorization.

38177808137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813.

The product of its (nonzero) digits is 1580544, while the sum is 53.

The spelling of 38177808137 in words is "thirty-eight billion, one hundred seventy-seven million, eight hundred eight thousand, one hundred thirty-seven".

Divisors: 1 7 19 133 239 379 1673 2653 3169 4541 7201 22183 31787 50407 60211 90581 421477 634067 757391 1201051 1721039 5301737 8407357 12047273 14390429 22819969 100733003 159739783 287051189 2009358323 5453972591 38177808137