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57191134 = 2731121353
BaseRepresentation
bin1101101000101…
…0101011011110
310222121121111011
43122022223132
5104120104014
65401445434
71263055000
oct332125336
9128547434
1057191134
112a312600
12171a087a
13bb05610
14784a370
15504a7c4
hex368aade

57191134 has 96 divisors (see below), whose sum is σ = 120657600. Its totient is φ = 20180160.

The previous prime is 57191131. The next prime is 57191137. The reversal of 57191134 is 43119175.

It is an interprime number because it is at equal distance from previous prime (57191131) and next prime (57191137).

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 57191096 and 57191105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57191131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1079052 + ... + 1079104.

It is an arithmetic number, because the mean of its divisors is an integer number (1256850).

Almost surely, 257191134 is an apocalyptic number.

57191134 is an abundant number, since it is smaller than the sum of its proper divisors (63466466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57191134 is a wasteful number, since it uses less digits than its factorization.

57191134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 86 counting only the distinct ones).

The product of its digits is 3780, while the sum is 31.

The square root of 57191134 is about 7562.4819999786. The cubic root of 57191134 is about 385.2797966101.

It can be divided in two parts, 57 and 191134, that added together give a palindrome (191191).

The spelling of 57191134 in words is "fifty-seven million, one hundred ninety-one thousand, one hundred thirty-four".

Divisors: 1 2 7 11 13 14 22 26 49 53 77 91 98 106 121 143 154 182 242 286 343 371 539 583 637 686 689 742 847 1001 1078 1166 1274 1378 1573 1694 2002 2597 3146 3773 4081 4459 4823 5194 5929 6413 7007 7546 7579 8162 8918 9646 11011 11858 12826 14014 15158 18179 22022 28567 33761 36358 41503 44891 49049 53053 57134 67522 77077 83006 83369 89782 98098 106106 154154 166738 199969 236327 314237 371371 399938 472654 539539 583583 628474 742742 1079078 1167166 2199659 2599597 4085081 4399318 5199194 8170162 28595567 57191134