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57348657 = 326372073
BaseRepresentation
bin1101101011000…
…1001000110001
310222220121120100
43122301020301
5104140124112
65405103013
71264312152
oct332611061
9128817510
1057348657
112a40a993
1217257a69
13bb5c222
14788b929
15507c2dc
hex36b1231

57348657 has 6 divisors (see below), whose sum is σ = 82836962. Its totient is φ = 38232432.

The previous prime is 57348653. The next prime is 57348659. The reversal of 57348657 is 75684375.

It can be written as a sum of positive squares in only one way, i.e., 42302016 + 15046641 = 6504^2 + 3879^2 .

It is not a de Polignac number, because 57348657 - 22 = 57348653 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57348653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3186028 + ... + 3186045.

Almost surely, 257348657 is an apocalyptic number.

It is an amenable number.

57348657 is a deficient number, since it is larger than the sum of its proper divisors (25488305).

57348657 is a wasteful number, since it uses less digits than its factorization.

57348657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6372079 (or 6372076 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 57348657 is about 7572.8896070126. The cubic root of 57348657 is about 385.6332010038.

The spelling of 57348657 in words is "fifty-seven million, three hundred forty-eight thousand, six hundred fifty-seven".

Divisors: 1 3 9 6372073 19116219 57348657