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57297894 = 2321145259
BaseRepresentation
bin1101101010010…
…0101111100110
310222211000221020
43122210233212
5104132013034
65404032010
71264011153
oct332445746
9128730836
1057297894
112a385835
1217232606
13bb420a4
14787722a
15506c249
hex36a4be6

57297894 has 16 divisors (see below), whose sum is σ = 115141440. Its totient is φ = 19008360.

The previous prime is 57297883. The next prime is 57297913. The reversal of 57297894 is 49879275.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21364 + ... + 23895.

It is an arithmetic number, because the mean of its divisors is an integer number (7196340).

Almost surely, 257297894 is an apocalyptic number.

57297894 is an abundant number, since it is smaller than the sum of its proper divisors (57843546).

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

57297894 is a wasteful number, since it uses less digits than its factorization.

57297894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45475.

The product of its digits is 1270080, while the sum is 51.

The square root of 57297894 is about 7569.5372381672. The cubic root of 57297894 is about 385.5193844647.

The spelling of 57297894 in words is "fifty-seven million, two hundred ninety-seven thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 211 422 633 1266 45259 90518 135777 271554 9549649 19099298 28648947 57297894