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253940708 = 2279069311
BaseRepresentation
bin11110010001011…
…01001111100100
3122200211112011102
433020231033210
51010002100313
641110455232
76202313630
oct1710551744
9580745142
10253940708
1112038545a
1271064518
13407c2298
1425a23dc0
1517461a58
hexf22d3e4

253940708 has 12 divisors (see below), whose sum is σ = 507881472. Its totient is φ = 108831720.

The previous prime is 253940707. The next prime is 253940737. The reversal of 253940708 is 807049352.

253940708 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (253940707) 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, 4534628 + ... + 4534683.

It is an arithmetic number, because the mean of its divisors is an integer number (42323456).

Almost surely, 2253940708 is an apocalyptic number.

253940708 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

253940708 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

253940708 is a wasteful number, since it uses less digits than its factorization.

253940708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9069322 (or 9069320 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 253940708 is about 15935.5171864612. The cubic root of 253940708 is about 633.2532713815.

The spelling of 253940708 in words is "two hundred fifty-three million, nine hundred forty thousand, seven hundred eight".

Divisors: 1 2 4 7 14 28 9069311 18138622 36277244 63485177 126970354 253940708