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57018696 = 23371917863
BaseRepresentation
bin1101100110000…
…0100101001000
310222021211221120
43121200211020
5104044044241
65354035240
71261436160
oct331404510
9128254846
1057018696
112a204a99
1217118b20
13ba74c97
1478035a0
155014666
hex3660948

57018696 has 64 divisors (see below), whose sum is σ = 171494400. Its totient is φ = 15432768.

The previous prime is 57018691. The next prime is 57018701. The reversal of 57018696 is 69681075.

It is an interprime number because it is at equal distance from previous prime (57018691) and next prime (57018701).

It is a super-2 number, since 2×570186962 = 6502263387080832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (57018691) 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, 5740 + ... + 12123.

It is an arithmetic number, because the mean of its divisors is an integer number (2679600).

Almost surely, 257018696 is an apocalyptic number.

57018696 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

57018696 is an abundant number, since it is smaller than the sum of its proper divisors (114475704).

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

57018696 is a wasteful number, since it uses less digits than its factorization.

57018696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17898 (or 17894 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 57018696 is about 7551.0725066046. The cubic root of 57018696 is about 384.8921854738.

The spelling of 57018696 in words is "fifty-seven million, eighteen thousand, six hundred ninety-six".

Divisors: 1 2 3 4 6 7 8 12 14 19 21 24 28 38 42 56 57 76 84 114 133 152 168 228 266 399 456 532 798 1064 1596 3192 17863 35726 53589 71452 107178 125041 142904 214356 250082 339397 375123 428712 500164 678794 750246 1000328 1018191 1357588 1500492 2036382 2375779 2715176 3000984 4072764 4751558 7127337 8145528 9503116 14254674 19006232 28509348 57018696