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57306680 = 2351432667
BaseRepresentation
bin1101101010011…
…0111000111000
310222211110222122
43122212320320
5104132303210
65404140412
71264045604
oct332467070
9128743878
1057306680
112a3913a2
1217237708
13bb460a2
14787a504
15506eb55
hex36a6e38

57306680 has 16 divisors (see below), whose sum is σ = 128940120. Its totient is φ = 22922656.

The previous prime is 57306653. The next prime is 57306701. The reversal of 57306680 is 8660375.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 57306680.

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, 716294 + ... + 716373.

Almost surely, 257306680 is an apocalyptic number.

It is an amenable number.

57306680 is an abundant number, since it is smaller than the sum of its proper divisors (71633440).

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

57306680 is a wasteful number, since it uses less digits than its factorization.

57306680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432678 (or 1432674 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 57306680 is about 7570.1175684397. The cubic root of 57306680 is about 385.5390885059.

The spelling of 57306680 in words is "fifty-seven million, three hundred six thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1432667 2865334 5730668 7163335 11461336 14326670 28653340 57306680