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318041057 = 19294712281
BaseRepresentation
bin10010111101001…
…110101111100001
3211011110011022102
4102331032233201
51122404303212
651320420145
710611206255
oct2275165741
9734404272
10318041057
11153586a54
128a617655
1350b76699
143034c265
151cdc45c2
hex12f4ebe1

318041057 has 16 divisors (see below), whose sum is σ = 353721600. Its totient is φ = 284699520.

The previous prime is 318041041. The next prime is 318041069. The reversal of 318041057 is 750140813.

It is a cyclic number.

It is not a de Polignac number, because 318041057 - 24 = 318041041 is a prime.

It is a super-2 number, since 2×3180410572 = 202300227875354498, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318041077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19757 + ... + 32037.

It is an arithmetic number, because the mean of its divisors is an integer number (22107600).

Almost surely, 2318041057 is an apocalyptic number.

It is an amenable number.

318041057 is a deficient number, since it is larger than the sum of its proper divisors (35680543).

318041057 is a wasteful number, since it uses less digits than its factorization.

318041057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12376.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 318041057 is about 17833.7056440887. The cubic root of 318041057 is about 682.5917936172.

The spelling of 318041057 in words is "three hundred eighteen million, forty-one thousand, fifty-seven".

Divisors: 1 19 29 47 551 893 1363 12281 25897 233339 356149 577207 6766831 10966933 16739003 318041057