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57513460 = 2252875673
BaseRepresentation
bin1101101101100…
…1010111110100
311000012222122011
43123121113310
5104210412320
65412414004
71265566504
oct333312764
9130188564
1057513460
112a512794
1217317304
13bbb9244
1478d1a04
1550b105a
hex36d95f4

57513460 has 12 divisors (see below), whose sum is σ = 120778308. Its totient is φ = 23005376.

The previous prime is 57513457. The next prime is 57513473. The reversal of 57513460 is 6431575.

It can be written as a sum of positive squares in 2 ways, for example, as 37478884 + 20034576 = 6122^2 + 4476^2 .

It is a congruent number.

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, 1437817 + ... + 1437856.

It is an arithmetic number, because the mean of its divisors is an integer number (10064859).

Almost surely, 257513460 is an apocalyptic number.

It is an amenable number.

57513460 is an abundant number, since it is smaller than the sum of its proper divisors (63264848).

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

57513460 is a wasteful number, since it uses less digits than its factorization.

57513460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875682 (or 2875680 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 57513460 is about 7583.7629182352. The cubic root of 57513460 is about 386.0022461322.

The spelling of 57513460 in words is "fifty-seven million, five hundred thirteen thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 2875673 5751346 11502692 14378365 28756730 57513460