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253868275 = 5261166471
BaseRepresentation
bin11110010000110…
…11100011110011
3122200200211210201
433020123203303
51004442241100
641105140031
76201562513
oct1710334363
9580624721
10253868275
11120335aa1
127102a617
134079831b
1425a05843
151744a36a
hexf21b8f3

253868275 has 12 divisors (see below), whose sum is σ = 319959184. Its totient is φ = 199764000.

The previous prime is 253868267. The next prime is 253868281. The reversal of 253868275 is 572868352.

It is a happy number.

It is not a de Polignac number, because 253868275 - 23 = 253868267 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81711 + ... + 84760.

Almost surely, 2253868275 is an apocalyptic number.

253868275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

253868275 is a deficient number, since it is larger than the sum of its proper divisors (66090909).

253868275 is a wasteful number, since it uses less digits than its factorization.

253868275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166542 (or 166537 counting only the distinct ones).

The product of its digits is 806400, while the sum is 46.

The square root of 253868275 is about 15933.2443337821. The cubic root of 253868275 is about 633.1930568057.

The spelling of 253868275 in words is "two hundred fifty-three million, eight hundred sixty-eight thousand, two hundred seventy-five".

Divisors: 1 5 25 61 305 1525 166471 832355 4161775 10154731 50773655 253868275