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253672974 = 232122911467
BaseRepresentation
bin11110001111010…
…11111000001110
3122200022220220100
433013223320032
51004420013344
641101031530
76200120232
oct1707537016
9580286810
10253672974
11120212295
1270b555a6
134072a469
14259945c2
151740c569
hexf1ebe0e

253672974 has 24 divisors (see below), whose sum is σ = 550119960. Its totient is φ = 84481488.

The previous prime is 253672961. The next prime is 253672987. The reversal of 253672974 is 479276352.

It is an interprime number because it is at equal distance from previous prime (253672961) and next prime (253672987).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16389 + ... + 27855.

It is an arithmetic number, because the mean of its divisors is an integer number (22921665).

Almost surely, 2253672974 is an apocalyptic number.

253672974 is an abundant number, since it is smaller than the sum of its proper divisors (296446986).

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

253672974 is a wasteful number, since it uses less digits than its factorization.

253672974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12704 (or 12701 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 253672974 is about 15927.1144279182. The cubic root of 253672974 is about 633.0306432310.

The spelling of 253672974 in words is "two hundred fifty-three million, six hundred seventy-two thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 9 18 1229 2458 3687 7374 11061 11467 22122 22934 34401 68802 103203 206406 14092943 28185886 42278829 84557658 126836487 253672974