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57866260 = 2252893313
BaseRepresentation
bin1101110010111…
…1100000010100
311000212220120211
43130233200110
5104303210020
65424135204
71301566204
oct334574024
9130786524
1057866260
112a733861
1217467504
13bcb09ba
147984404
15513085a
hex372f814

57866260 has 12 divisors (see below), whose sum is σ = 121519188. Its totient is φ = 23146496.

The previous prime is 57866257. The next prime is 57866273. The reversal of 57866260 is 6266875.

57866260 is digitally balanced in base 2 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6543364 + 51322896 = 2558^2 + 7164^2 .

57866260 is strictly pandigital in base 9.

It is a congruent number.

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, 1446637 + ... + 1446676.

It is an arithmetic number, because the mean of its divisors is an integer number (10126599).

Almost surely, 257866260 is an apocalyptic number.

It is an amenable number.

57866260 is an abundant number, since it is smaller than the sum of its proper divisors (63652928).

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

57866260 is a wasteful number, since it uses less digits than its factorization.

57866260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2893322 (or 2893320 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 57866260 is about 7606.9875772214. The cubic root of 57866260 is about 386.7899114993.

The spelling of 57866260 in words is "fifty-seven million, eight hundred sixty-six thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 2893313 5786626 11573252 14466565 28933130 57866260