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257464314 = 23214303573
BaseRepresentation
bin11110101100010…
…01011111111010
3122221110112122100
433112021133322
51011402324224
641314204230
76244260552
oct1726113772
9587415570
10257464314
11122371828
1272283676
1341457063
14262a0162
151790aac9
hexf5897fa

257464314 has 12 divisors (see below), whose sum is σ = 557839386. Its totient is φ = 85821432.

The previous prime is 257464271. The next prime is 257464327. The reversal of 257464314 is 413464752.

257464314 is a `hidden beast` number, since 2 + 5 + 7 + 4 + 643 + 1 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 129208689 + 128255625 = 11367^2 + 11325^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7151769 + ... + 7151804.

Almost surely, 2257464314 is an apocalyptic number.

257464314 is an abundant number, since it is smaller than the sum of its proper divisors (300375072).

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

257464314 is a wasteful number, since it uses less digits than its factorization.

257464314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14303581 (or 14303578 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 257464314 is about 16045.6945627168. The cubic root of 257464314 is about 636.1687727009.

The spelling of 257464314 in words is "two hundred fifty-seven million, four hundred sixty-four thousand, three hundred fourteen".

Divisors: 1 2 3 6 9 18 14303573 28607146 42910719 85821438 128732157 257464314