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57297707 = 293116353
BaseRepresentation
bin1101101010010…
…0101100101011
310222211000200022
43122210230223
5104132011312
65404031055
71264010465
oct332445453
9128730608
1057297707
112a385685
121723248b
13bb41c8c
147877135
15506c172
hex36a4b2b

57297707 has 8 divisors (see below), whose sum is σ = 59473440. Its totient is φ = 55135360.

The previous prime is 57297689. The next prime is 57297743. The reversal of 57297707 is 70779275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57297707 - 28 = 57297451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57297007) 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, 5843 + ... + 12195.

It is an arithmetic number, because the mean of its divisors is an integer number (7434180).

Almost surely, 257297707 is an apocalyptic number.

57297707 is a deficient number, since it is larger than the sum of its proper divisors (2175733).

57297707 is a wasteful number, since it uses less digits than its factorization.

57297707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6693.

The product of its (nonzero) digits is 216090, while the sum is 44.

The square root of 57297707 is about 7569.5248860150. The cubic root of 57297707 is about 385.5189650647.

The spelling of 57297707 in words is "fifty-seven million, two hundred ninety-seven thousand, seven hundred seven".

Divisors: 1 29 311 6353 9019 184237 1975783 57297707