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307107057 = 31740914723
BaseRepresentation
bin10010010011100…
…001010011110001
3210101212122200110
4102103201103301
51112104411212
650250211533
710416236565
oct2223412361
9711778613
10307107057
11148399094
1286a23ba9
134b81896a
142cb036a5
151be64a3c
hex124e14f1

307107057 has 16 divisors (see below), whose sum is σ = 434652480. Its totient is φ = 192210432.

The previous prime is 307107041. The next prime is 307107061. The reversal of 307107057 is 750701703.

It is not a de Polignac number, because 307107057 - 24 = 307107041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (307107037) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13498 + ... + 28220.

It is an arithmetic number, because the mean of its divisors is an integer number (27165780).

Almost surely, 2307107057 is an apocalyptic number.

It is an amenable number.

307107057 is a deficient number, since it is larger than the sum of its proper divisors (127545423).

307107057 is a wasteful number, since it uses less digits than its factorization.

307107057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15152.

The product of its (nonzero) digits is 5145, while the sum is 30.

The square root of 307107057 is about 17524.4702345035. The cubic root of 307107057 is about 674.6780774938.

The spelling of 307107057 in words is "three hundred seven million, one hundred seven thousand, fifty-seven".

Divisors: 1 3 17 51 409 1227 6953 14723 20859 44169 250291 750873 6021707 18065121 102369019 307107057