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38855757188285 = 5191783284380687
BaseRepresentation
bin10001101010110110011111…
…00110101100110010111101
312002120120111112012112120122
420311123033212230302331
520043103042320011120
6214350031033424325
711120143612445642
oct1065331746546275
9162516445175518
1038855757188285
11114206a7a68884
12443660a56b0a5
13188b10b72197b
149848b3165dc9
15475ada049a25
hex2356cf9accbd

38855757188285 has 32 divisors (see below), whose sum is σ = 49126365941760. Its totient is φ = 29421340458048.

The previous prime is 38855757188191. The next prime is 38855757188327. The reversal of 38855757188285 is 58288175755883.

It is a cyclic number.

It is not a de Polignac number, because 38855757188285 - 28 = 38855757188029 is a prime.

It is a super-2 number, since 2×388557571882852 (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (80) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 481521212 + ... + 481601898.

It is an arithmetic number, because the mean of its divisors is an integer number (1535198935680).

Almost surely, 238855757188285 is an apocalyptic number.

It is an amenable number.

38855757188285 is a deficient number, since it is larger than the sum of its proper divisors (10270608753475).

38855757188285 is a wasteful number, since it uses less digits than its factorization.

38855757188285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85337.

The product of its digits is 6021120000, while the sum is 80.

The spelling of 38855757188285 in words is "thirty-eight trillion, eight hundred fifty-five billion, seven hundred fifty-seven million, one hundred eighty-eight thousand, two hundred eighty-five".

Divisors: 1 5 19 95 1783 2843 8915 14215 33877 54017 80687 169385 270085 403435 1533053 5069069 7665265 25345345 96312311 143864921 229393141 481561555 719324605 1146965705 2733433499 4358469679 13667167495 21792348395 409007970403 2045039852015 7771151437657 38855757188285