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57448902 = 2371367831
BaseRepresentation
bin1101101100100…
…1100111000110
311000002201002010
43123021213012
5104201331102
65411155050
71265210340
oct333114706
9130081063
1057448902
112a479235
12172a5a86
13bb95a44
1478b6290
15509bd6c
hex36c99c6

57448902 has 16 divisors (see below), whose sum is σ = 131311872. Its totient is φ = 16413960.

The previous prime is 57448889. The next prime is 57448907. The reversal of 57448902 is 20984475.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57448907) 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, 683874 + ... + 683957.

It is an arithmetic number, because the mean of its divisors is an integer number (8206992).

Almost surely, 257448902 is an apocalyptic number.

57448902 is an abundant number, since it is smaller than the sum of its proper divisors (73862970).

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

57448902 is a wasteful number, since it uses less digits than its factorization.

57448902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367843.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 57448902 is about 7579.5053928340. The cubic root of 57448902 is about 385.8577648070.

The spelling of 57448902 in words is "fifty-seven million, four hundred forty-eight thousand, nine hundred two".

Divisors: 1 2 3 6 7 14 21 42 1367831 2735662 4103493 8206986 9574817 19149634 28724451 57448902