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57500712 = 2333509523
BaseRepresentation
bin1101101101011…
…0010000101000
311000012100011000
43123112100220
5104210010322
65412235000
71265514363
oct333262050
9130170130
1057500712
112a504155
121730ba60
13bbb34b9
1478cb0da
1550ac3ac
hex36d6428

57500712 has 64 divisors (see below), whose sum is σ = 160344000. Its totient is φ = 19092672.

The previous prime is 57500687. The next prime is 57500717. The reversal of 57500712 is 21700575.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (57500717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109683 + ... + 110205.

It is an arithmetic number, because the mean of its divisors is an integer number (2505375).

Almost surely, 257500712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57500712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80172000).

57500712 is an abundant number, since it is smaller than the sum of its proper divisors (102843288).

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

57500712 is a wasteful number, since it uses less digits than its factorization.

57500712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 57500712 is about 7582.9223917959. The cubic root of 57500712 is about 385.9737245755.

The spelling of 57500712 in words is "fifty-seven million, five hundred thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 509 523 1018 1046 1527 1569 2036 2092 3054 3138 4072 4184 4581 4707 6108 6276 9162 9414 12216 12552 13743 14121 18324 18828 27486 28242 36648 37656 54972 56484 109944 112968 266207 532414 798621 1064828 1597242 2129656 2395863 3194484 4791726 6388968 7187589 9583452 14375178 19166904 28750356 57500712