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57513644044 = 221737107213637
BaseRepresentation
bin110101100100000101…
…001001000000001100
312111110020001211120121
4311210011021000030
51420241443102134
642231004554324
74104145623343
oct654405110014
9174406054517
1057513644044
1122433a5302a
12b1912529a4
1355675c714c
142ad8594b5a
15176931eab4
hexd6414900c

57513644044 has 48 divisors (see below), whose sum is σ = 110473064352. Its totient is φ = 26087519232.

The previous prime is 57513644021. The next prime is 57513644047. The reversal of 57513644044 is 44044631575.

It is not an unprimeable number, because it can be changed into a prime (57513644047) 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, 162394 + ... + 376030.

It is an arithmetic number, because the mean of its divisors is an integer number (2301522174).

Almost surely, 257513644044 is an apocalyptic number.

It is an amenable number.

57513644044 is a deficient number, since it is larger than the sum of its proper divisors (52959420308).

57513644044 is a wasteful number, since it uses less digits than its factorization.

57513644044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213802 (or 213800 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 43.

The spelling of 57513644044 in words is "fifty-seven billion, five hundred thirteen million, six hundred forty-four thousand, forty-four".

Divisors: 1 2 4 17 34 37 68 74 107 148 214 428 629 1258 1819 2516 3638 3959 7276 7918 15836 67303 134606 213637 269212 427274 854548 3631829 7263658 7904569 14527316 15809138 22859159 31618276 45718318 91436636 134377673 268755346 388605703 537510692 777211406 845788883 1554422812 1691577766 3383155532 14378411011 28756822022 57513644044