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57208804 = 2235939839
BaseRepresentation
bin1101101000111…
…0111111100100
310222122111201121
43122032333210
5104121140204
65402103324
71263160342
oct332167744
9128574647
1057208804
112a324904
12171aab44
13bb10683
147852992
155050b54
hex368efe4

57208804 has 12 divisors (see below), whose sum is σ = 100396800. Its totient is φ = 28524008.

The previous prime is 57208799. The next prime is 57208807. The reversal of 57208804 is 40880275.

It is a super-2 number, since 2×572088042 = 6545694510220832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57208804.

It is not an unprimeable number, because it can be changed into a prime (57208807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18484 + ... + 21355.

It is an arithmetic number, because the mean of its divisors is an integer number (8366400).

Almost surely, 257208804 is an apocalyptic number.

It is an amenable number.

57208804 is a deficient number, since it is larger than the sum of its proper divisors (43187996).

57208804 is a wasteful number, since it uses less digits than its factorization.

57208804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40202 (or 40200 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 57208804 is about 7563.6501769979. The cubic root of 57208804 is about 385.3194717166.

The spelling of 57208804 in words is "fifty-seven million, two hundred eight thousand, eight hundred four".

Divisors: 1 2 4 359 718 1436 39839 79678 159356 14302201 28604402 57208804