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68457275 = 522738291
BaseRepresentation
bin1000001010010…
…01001100111011
311202210222201122
410011021030323
5120011113100
610443135455
71460606615
oct405111473
9152728648
1068457275
1135707a67
121ab1458b
131124b583
14913ddb5
156023985
hex414933b

68457275 has 6 divisors (see below), whose sum is σ = 84887052. Its totient is φ = 54765800.

The previous prime is 68457271. The next prime is 68457281. The reversal of 68457275 is 57275486.

It is not a de Polignac number, because 68457275 - 22 = 68457271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68457271) 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, 1369121 + ... + 1369170.

It is an arithmetic number, because the mean of its divisors is an integer number (14147842).

Almost surely, 268457275 is an apocalyptic number.

68457275 is a deficient number, since it is larger than the sum of its proper divisors (16429777).

68457275 is a wasteful number, since it uses less digits than its factorization.

68457275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738301 (or 2738296 counting only the distinct ones).

The product of its digits is 470400, while the sum is 44.

The square root of 68457275 is about 8273.8911643797. The cubic root of 68457275 is about 409.0783879819.

The spelling of 68457275 in words is "sixty-eight million, four hundred fifty-seven thousand, two hundred seventy-five".

Divisors: 1 5 25 2738291 13691455 68457275