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57151666696 = 238237867301
BaseRepresentation
bin110101001110100000…
…010011101000001000
312110111222221111000011
4311032200103220020
51414021311313241
642131034321304
74062162102655
oct651640235010
9173458844004
1057151666696
11222686980a3
12b0abb89234
13550a609377
142aa248ac2c
15174766c281
hexd4e813a08

57151666696 has 16 divisors (see below), whose sum is σ = 107172508140. Its totient is φ = 28572331200.

The previous prime is 57151666669. The next prime is 57151666697. The reversal of 57151666696 is 69666615175.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 48174104196 + 8977562500 = 219486^2 + 94750^2 .

It is a super-2 number, since 2×571516666962 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57151666696.

It is not an unprimeable number, because it can be changed into a prime (57151666697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367755 + ... + 499546.

Almost surely, 257151666696 is an apocalyptic number.

It is an amenable number.

57151666696 is a deficient number, since it is larger than the sum of its proper divisors (50020841444).

57151666696 is a wasteful number, since it uses less digits than its factorization.

57151666696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875544 (or 875540 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 58.

The spelling of 57151666696 in words is "fifty-seven billion, one hundred fifty-one million, six hundred sixty-six thousand, six hundred ninety-six".

Divisors: 1 2 4 8 8237 16474 32948 65896 867301 1734602 3469204 6938408 7143958337 14287916674 28575833348 57151666696