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57130344 = 23322334499
BaseRepresentation
bin1101100111101…
…1110101101000
310222111112002200
43121323311220
5104111132334
65400300200
71262412525
oct331736550
9128445080
1057130344
112a280967
1217171660
13bab3a4b
14783214c
155037799
hex367bd68

57130344 has 48 divisors (see below), whose sum is σ = 161460000. Its totient is φ = 18214944.

The previous prime is 57130327. The next prime is 57130373. The reversal of 57130344 is 44303175.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15594 + ... + 18905.

It is an arithmetic number, because the mean of its divisors is an integer number (3363750).

Almost surely, 257130344 is an apocalyptic number.

It is an amenable number.

57130344 is an abundant number, since it is smaller than the sum of its proper divisors (104329656).

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

57130344 is a wasteful number, since it uses less digits than its factorization.

57130344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34534 (or 34527 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 57130344 is about 7558.4617482660. The cubic root of 57130344 is about 385.1432401171.

The spelling of 57130344 in words is "fifty-seven million, one hundred thirty thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 18 23 24 36 46 69 72 92 138 184 207 276 414 552 828 1656 34499 68998 103497 137996 206994 275992 310491 413988 620982 793477 827976 1241964 1586954 2380431 2483928 3173908 4760862 6347816 7141293 9521724 14282586 19043448 28565172 57130344