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252454328 = 23731145423
BaseRepresentation
bin11110000110000…
…10010110111000
3122121001000020022
433003002112320
51004112014303
641014550012
76153553310
oct1703022670
9577030208
10252454328
1111a55a745
1270668308
13403c1879
1425758440
151726b438
hexf0c25b8

252454328 has 32 divisors (see below), whose sum is σ = 558428160. Its totient is φ = 104703840.

The previous prime is 252454327. The next prime is 252454337. The reversal of 252454328 is 823454252.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252454327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70976 + ... + 74447.

It is an arithmetic number, because the mean of its divisors is an integer number (17450880).

Almost surely, 2252454328 is an apocalyptic number.

252454328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

252454328 is an abundant number, since it is smaller than the sum of its proper divisors (305973832).

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

252454328 is a wasteful number, since it uses less digits than its factorization.

252454328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145467 (or 145463 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

The square root of 252454328 is about 15888.8114092905. The cubic root of 252454328 is about 632.0153216923.

The spelling of 252454328 in words is "two hundred fifty-two million, four hundred fifty-four thousand, three hundred twenty-eight".

Divisors: 1 2 4 7 8 14 28 31 56 62 124 217 248 434 868 1736 145423 290846 581692 1017961 1163384 2035922 4071844 4508113 8143688 9016226 18032452 31556791 36064904 63113582 126227164 252454328