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285348056 = 23731164371
BaseRepresentation
bin10001000000100…
…001000011011000
3201212221011221112
4101000201003120
51041022114211
644151555452
710033263350
oct2100410330
9655834845
10285348056
11137087244
127b68bb88
134716aa06
1429c7bb60
151a0b788b
hex110210d8

285348056 has 32 divisors (see below), whose sum is σ = 631188480. Its totient is φ = 118346400.

The previous prime is 285348047. The next prime is 285348067. The reversal of 285348056 is 650843582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80450 + ... + 83921.

It is an arithmetic number, because the mean of its divisors is an integer number (19724640).

Almost surely, 2285348056 is an apocalyptic number.

It is an amenable number.

285348056 is an abundant number, since it is smaller than the sum of its proper divisors (345840424).

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

285348056 is a wasteful number, since it uses less digits than its factorization.

285348056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164415 (or 164411 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The square root of 285348056 is about 16892.2483997838. The cubic root of 285348056 is about 658.3522225562.

The spelling of 285348056 in words is "two hundred eighty-five million, three hundred forty-eight thousand, fifty-six".

Divisors: 1 2 4 7 8 14 28 31 56 62 124 217 248 434 868 1736 164371 328742 657484 1150597 1314968 2301194 4602388 5095501 9204776 10191002 20382004 35668507 40764008 71337014 142674028 285348056