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257454314 = 2139902089
BaseRepresentation
bin11110101100001…
…11000011101010
3122221110000220222
433112013003222
51011402014224
641314050042
76244216445
oct1726070352
9587400828
10257454314
11122365267
1272279922
1341452640
142629a65c
1517907b5e
hexf5870ea

257454314 has 8 divisors (see below), whose sum is σ = 415887780. Its totient is φ = 118825056.

The previous prime is 257454289. The next prime is 257454317. The reversal of 257454314 is 413454752.

It can be written as a sum of positive squares in 2 ways, for example, as 249798025 + 7656289 = 15805^2 + 2767^2 .

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

It is not an unprimeable number, because it can be changed into a prime (257454317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4951019 + ... + 4951070.

Almost surely, 2257454314 is an apocalyptic number.

257454314 is a deficient number, since it is larger than the sum of its proper divisors (158433466).

257454314 is a wasteful number, since it uses less digits than its factorization.

257454314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9902104.

The product of its digits is 67200, while the sum is 35.

The square root of 257454314 is about 16045.3829496214. The cubic root of 257454314 is about 636.1605362584.

The spelling of 257454314 in words is "two hundred fifty-seven million, four hundred fifty-four thousand, three hundred fourteen".

Divisors: 1 2 13 26 9902089 19804178 128727157 257454314