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57985512 = 23313375023
BaseRepresentation
bin1101110100110…
…0100111101000
311001002222011120
43131030213220
5104321014022
65430455240
71302603654
oct335144750
9131088146
1057985512
112a805412
1217504520
13c023070
1479b5a64
155155d5c
hex374c9e8

57985512 has 64 divisors (see below), whose sum is σ = 160366080. Its totient is φ = 17356032.

The previous prime is 57985489. The next prime is 57985513. The reversal of 57985512 is 21558975.

It is not an unprimeable number, because it can be changed into a prime (57985513) 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, 9033 + ... + 14055.

It is an arithmetic number, because the mean of its divisors is an integer number (2505720).

Almost surely, 257985512 is an apocalyptic number.

57985512 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57985512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80183040).

57985512 is an abundant number, since it is smaller than the sum of its proper divisors (102380568).

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

57985512 is a wasteful number, since it uses less digits than its factorization.

57985512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5082 (or 5078 counting only the distinct ones).

The product of its digits is 126000, while the sum is 42.

The square root of 57985512 is about 7614.8218626571. The cubic root of 57985512 is about 387.0554307691.

The spelling of 57985512 in words is "fifty-seven million, nine hundred eighty-five thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 12 13 24 26 37 39 52 74 78 104 111 148 156 222 296 312 444 481 888 962 1443 1924 2886 3848 5023 5772 10046 11544 15069 20092 30138 40184 60276 65299 120552 130598 185851 195897 261196 371702 391794 522392 557553 743404 783588 1115106 1486808 1567176 2230212 2416063 4460424 4832126 7248189 9664252 14496378 19328504 28992756 57985512