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57283572 = 2235980909
BaseRepresentation
bin1101101010000…
…1001111110100
310222210022021210
43122201033310
5104131033242
65403441420
71263621333
oct332411764
9128708253
1057283572
112a375aa5
1217226270
13bb38708
147871d1a
155067d9c
hex36a13f4

57283572 has 24 divisors (see below), whose sum is σ = 135928800. Its totient is φ = 18770656.

The previous prime is 57283559. The next prime is 57283573. The reversal of 57283572 is 27538275.

It is a self number, because there is not a number n which added to its sum of digits gives 57283572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57283573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39747 + ... + 41162.

It is an arithmetic number, because the mean of its divisors is an integer number (5663700).

Almost surely, 257283572 is an apocalyptic number.

It is an amenable number.

57283572 is an abundant number, since it is smaller than the sum of its proper divisors (78645228).

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

57283572 is a wasteful number, since it uses less digits than its factorization.

57283572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80975 (or 80973 counting only the distinct ones).

The product of its digits is 117600, while the sum is 39.

The square root of 57283572 is about 7568.5911502736. The cubic root of 57283572 is about 385.4872607202.

The spelling of 57283572 in words is "fifty-seven million, two hundred eighty-three thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 12 59 118 177 236 354 708 80909 161818 242727 323636 485454 970908 4773631 9547262 14320893 19094524 28641786 57283572