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57260252 = 2272045009
BaseRepresentation
bin1101101001101…
…1100011011100
310222202010022002
43122123203130
5104124312002
65403141432
71263463340
oct332334334
9128663262
1057260252
112a35a525
1217214878
13bb2ac0a
147867620
155061002
hex369b8dc

57260252 has 12 divisors (see below), whose sum is σ = 114520560. Its totient is φ = 24540096.

The previous prime is 57260221. The next prime is 57260263. The reversal of 57260252 is 25206275.

57260252 is an admirable number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022477 + ... + 1022532.

It is an arithmetic number, because the mean of its divisors is an integer number (9543380).

Almost surely, 257260252 is an apocalyptic number.

It is an amenable number.

57260252 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.

57260252 is a wasteful number, since it uses less digits than its factorization.

57260252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045020 (or 2045018 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 57260252 is about 7567.0504161133. The cubic root of 57260252 is about 385.4349433177.

The spelling of 57260252 in words is "fifty-seven million, two hundred sixty thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 2045009 4090018 8180036 14315063 28630126 57260252