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57198968 = 23193161199
BaseRepresentation
bin1101101000110…
…0100101111000
310222122000020022
43122030211320
5104120331333
65401550012
71263116561
oct332144570
9128560208
1057198968
112a318482
12171a5308
13bb09058
14784d168
15504cc98
hex368c978

57198968 has 64 divisors (see below), whose sum is σ = 119040000. Its totient is φ = 25660800.

The previous prime is 57198959. The next prime is 57198971. The reversal of 57198968 is 86989175.

57198968 = 1073 + 1083 + ... + 1373.

57198968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 75632-1.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287333 + ... + 287531.

It is an arithmetic number, because the mean of its divisors is an integer number (1860000).

Almost surely, 257198968 is an apocalyptic number.

It is an amenable number.

57198968 is an abundant number, since it is smaller than the sum of its proper divisors (61841032).

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

57198968 is a wasteful number, since it uses less digits than its factorization.

57198968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 312 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 53.

The square root of 57198968 is about 7562.9999338887. Note that the first 4 decimals coincide. The cubic root of 57198968 is about 385.2973875892.

The spelling of 57198968 in words is "fifty-seven million, one hundred ninety-eight thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 19 31 38 61 62 76 122 124 152 199 244 248 398 488 589 796 1159 1178 1592 1891 2318 2356 3781 3782 4636 4712 6169 7562 7564 9272 12139 12338 15124 15128 24278 24676 30248 35929 48556 49352 71858 97112 117211 143716 230641 234422 287432 376309 461282 468844 752618 922564 937688 1505236 1845128 3010472 7149871 14299742 28599484 57198968