Search a number
-
+
57530660 = 22511223773
BaseRepresentation
bin1101101101110…
…1100100100100
311000020212020012
43123131210210
5104211440120
65413025352
71266000605
oct333354444
9130225205
1057530660
112a524700
1217325258
13bbc4015
1478d7dac
1550b61c5
hex36dd924

57530660 has 36 divisors (see below), whose sum is σ = 132801564. Its totient is φ = 20919360.

The previous prime is 57530657. The next prime is 57530677. The reversal of 57530660 is 6603575.

It can be written as a sum of positive squares in 2 ways, for example, as 17106496 + 40424164 = 4136^2 + 6358^2 .

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, 9467 + ... + 14306.

Almost surely, 257530660 is an apocalyptic number.

It is an amenable number.

57530660 is an abundant number, since it is smaller than the sum of its proper divisors (75270904).

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

57530660 is a wasteful number, since it uses less digits than its factorization.

57530660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23804 (or 23791 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 57530660 is about 7584.8968351587. The cubic root of 57530660 is about 386.0407216294.

The spelling of 57530660 in words is "fifty-seven million, five hundred thirty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 121 220 242 484 605 1210 2420 23773 47546 95092 118865 237730 261503 475460 523006 1046012 1307515 2615030 2876533 5230060 5753066 11506132 14382665 28765330 57530660