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57217796 = 2241348889
BaseRepresentation
bin1101101001000…
…1001100000100
310222122222001122
43122101030010
5104121432141
65402213112
71263225506
oct332211404
9128588048
1057217796
112a330639
12171b4198
13bb147ac
147855d76
15505364b
hex3691304

57217796 has 12 divisors (see below), whose sum is σ = 102573660. Its totient is φ = 27911040.

The previous prime is 57217781. The next prime is 57217829. The reversal of 57217796 is 69771275.

It can be written as a sum of positive squares in 2 ways, for example, as 4452100 + 52765696 = 2110^2 + 7264^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174281 + ... + 174608.

It is an arithmetic number, because the mean of its divisors is an integer number (8547805).

Almost surely, 257217796 is an apocalyptic number.

It is an amenable number.

57217796 is a deficient number, since it is larger than the sum of its proper divisors (45355864).

57217796 is a wasteful number, since it uses less digits than its factorization.

57217796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348934 (or 348932 counting only the distinct ones).

The product of its digits is 185220, while the sum is 44.

The square root of 57217796 is about 7564.2445756334. The cubic root of 57217796 is about 385.3396586513.

The spelling of 57217796 in words is "fifty-seven million, two hundred seventeen thousand, seven hundred ninety-six".

Divisors: 1 2 4 41 82 164 348889 697778 1395556 14304449 28608898 57217796