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57284072 = 2317874007
BaseRepresentation
bin1101101010000…
…1010111101000
310222210022222022
43122201113220
5104131042242
65403444012
71263622646
oct332412750
9128708868
1057284072
112a37640a
1217226608
13bb38a01
147872196
1550680d2
hex36a15e8

57284072 has 16 divisors (see below), whose sum is σ = 107494560. Its totient is φ = 28618864.

The previous prime is 57284057. The next prime is 57284081. The reversal of 57284072 is 27048275.

57284072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12293 + ... + 16299.

It is an arithmetic number, because the mean of its divisors is an integer number (6718410).

Almost surely, 257284072 is an apocalyptic number.

It is an amenable number.

57284072 is a deficient number, since it is larger than the sum of its proper divisors (50210488).

57284072 is a wasteful number, since it uses less digits than its factorization.

57284072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5800 (or 5796 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 57284072 is about 7568.6241814480. The cubic root of 57284072 is about 385.4883822928.

The spelling of 57284072 in words is "fifty-seven million, two hundred eighty-four thousand, seventy-two".

Divisors: 1 2 4 8 1787 3574 4007 7148 8014 14296 16028 32056 7160509 14321018 28642036 57284072