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57168435237 = 3291936735059
BaseRepresentation
bin110101001111100000…
…010001100000100101
312110120011111102010020
4311033200101200211
51414040104411422
642132433545353
74062454452564
oct651740214045
9173504442106
1057168435237
11222771005a1
12b0b5715259
135510c2a994
142aa47b3bdb
151748d8095c
hexd4f811825

57168435237 has 32 divisors (see below), whose sum is σ = 79395043200. Its totient is φ = 36545789952.

The previous prime is 57168435143. The next prime is 57168435257. The reversal of 57168435237 is 73253486175.

It is not a de Polignac number, because 57168435237 - 219 = 57167910949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57168435237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57168435257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11297814 + ... + 11302872.

It is an arithmetic number, because the mean of its divisors is an integer number (2481095100).

Almost surely, 257168435237 is an apocalyptic number.

It is an amenable number.

57168435237 is a deficient number, since it is larger than the sum of its proper divisors (22226607963).

57168435237 is a wasteful number, since it uses less digits than its factorization.

57168435237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5957.

The product of its digits is 4233600, while the sum is 51.

The spelling of 57168435237 in words is "fifty-seven billion, one hundred sixty-eight million, four hundred thirty-five thousand, two hundred thirty-seven".

Divisors: 1 3 29 87 193 579 673 2019 5059 5597 15177 16791 19517 58551 129889 146711 389667 440133 976387 2929161 3404707 3766781 10214121 11300343 28315223 84945669 98736503 296209509 657108451 1971325353 19056145079 57168435237