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57107277 = 326345253
BaseRepresentation
bin1101100111011…
…0001101001101
310222110100110100
43121312031031
5104104413102
65400001313
71262255343
oct331661515
9128410410
1057107277
112a2655a7
1217160239
13baa63b6
147827993
155030a1c
hex367634d

57107277 has 6 divisors (see below), whose sum is σ = 82488302. Its totient is φ = 38071512.

The previous prime is 57107273. The next prime is 57107279. The reversal of 57107277 is 77270175.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 31036041 + 26071236 = 5571^2 + 5106^2 .

It is not a de Polignac number, because 57107277 - 22 = 57107273 is a prime.

It is a super-2 number, since 2×571072772 = 6522482172709458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57107273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3172618 + ... + 3172635.

Almost surely, 257107277 is an apocalyptic number.

It is an amenable number.

57107277 is a deficient number, since it is larger than the sum of its proper divisors (25381025).

57107277 is a wasteful number, since it uses less digits than its factorization.

57107277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6345259 (or 6345256 counting only the distinct ones).

The product of its (nonzero) digits is 24010, while the sum is 36.

The square root of 57107277 is about 7556.9356884917. The cubic root of 57107277 is about 385.0913978768.

The spelling of 57107277 in words is "fifty-seven million, one hundred seven thousand, two hundred seventy-seven".

Divisors: 1 3 9 6345253 19035759 57107277