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57064129 = 91162639
BaseRepresentation
bin1101100110101…
…1101011000001
310222101011021021
43121223223001
5104102023004
65355025441
71262015503
oct331535301
9128334237
1057064129
112a236141
121713b281
13ba8c875
147815d73
155022d54
hex366bac1

57064129 has 4 divisors (see below), whose sum is σ = 57127680. Its totient is φ = 57000580.

The previous prime is 57064123. The next prime is 57064171. The reversal of 57064129 is 92146075.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57064129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57064094 and 57064103.

It is not an unprimeable number, because it can be changed into a prime (57064123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30409 + ... + 32230.

It is an arithmetic number, because the mean of its divisors is an integer number (14281920).

Almost surely, 257064129 is an apocalyptic number.

It is an amenable number.

57064129 is a deficient number, since it is larger than the sum of its proper divisors (63551).

57064129 is an equidigital number, since it uses as much as digits as its factorization.

57064129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63550.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 57064129 is about 7554.0802881622. The cubic root of 57064129 is about 384.9943868300.

The spelling of 57064129 in words is "fifty-seven million, sixty-four thousand, one hundred twenty-nine".

Divisors: 1 911 62639 57064129