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57285452 = 2272045909
BaseRepresentation
bin1101101010000…
…1101101001100
310222210101212102
43122201231030
5104131113302
65403454232
71263626660
oct332415514
9128711772
1057285452
112a377454
1217227378
13bb39523
1478728a0
155068702
hex36a1b4c

57285452 has 12 divisors (see below), whose sum is σ = 114570960. Its totient is φ = 24550896.

The previous prime is 57285451. The next prime is 57285457. The reversal of 57285452 is 25458275.

57285452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

57285452 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (57285451) by changing a digit.

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, 1022927 + ... + 1022982.

It is an arithmetic number, because the mean of its divisors is an integer number (9547580).

Almost surely, 257285452 is an apocalyptic number.

It is an amenable number.

57285452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57285452 is a wasteful number, since it uses less digits than its factorization.

57285452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045920 (or 2045918 counting only the distinct ones).

The product of its digits is 112000, while the sum is 38.

The square root of 57285452 is about 7568.7153467415. The cubic root of 57285452 is about 385.4914777996.

The spelling of 57285452 in words is "fifty-seven million, two hundred eighty-five thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 2045909 4091818 8183636 14321363 28642726 57285452