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57820712 = 2323314243
BaseRepresentation
bin1101110010010…
…0011000101000
311000210121002212
43130210120220
5104300230322
65423144252
71301316335
oct334443050
9130717085
1057820712
112a702614
1217445088
13bc96051
14797198c
1551220e2
hex3724628

57820712 has 16 divisors (see below), whose sum is σ = 113127840. Its totient is φ = 27653296.

The previous prime is 57820709. The next prime is 57820717. The reversal of 57820712 is 21702875.

It is not an unprimeable number, because it can be changed into a prime (57820717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156938 + ... + 157305.

It is an arithmetic number, because the mean of its divisors is an integer number (7070490).

Almost surely, 257820712 is an apocalyptic number.

It is an amenable number.

57820712 is a deficient number, since it is larger than the sum of its proper divisors (55307128).

57820712 is a wasteful number, since it uses less digits than its factorization.

57820712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314272 (or 314268 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 57820712 is about 7603.9931614909. The cubic root of 57820712 is about 386.6884008129.

The spelling of 57820712 in words is "fifty-seven million, eight hundred twenty thousand, seven hundred twelve".

Divisors: 1 2 4 8 23 46 92 184 314243 628486 1256972 2513944 7227589 14455178 28910356 57820712