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280234272 = 2532919107
BaseRepresentation
bin10000101101000…
…000100100100000
3201112022101011010
4100231000210200
51033214444042
643450220520
76641644353
oct2055004440
9645271133
10280234272
1113420417a
1279a24740
134609a1c6
142930a29a
151990759c
hex10b40920

280234272 has 24 divisors (see below), whose sum is σ = 735615216. Its totient is φ = 93411392.

The previous prime is 280234259. The next prime is 280234289. The reversal of 280234272 is 272432082.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1459458 + ... + 1459649.

It is an arithmetic number, because the mean of its divisors is an integer number (30650634).

Almost surely, 2280234272 is an apocalyptic number.

It is an amenable number.

280234272 is an abundant number, since it is smaller than the sum of its proper divisors (455380944).

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

280234272 is a wasteful number, since it uses less digits than its factorization.

280234272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919120 (or 2919112 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 280234272 is about 16740.1992819679. The cubic root of 280234272 is about 654.3956681385.

The spelling of 280234272 in words is "two hundred eighty million, two hundred thirty-four thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 2919107 5838214 8757321 11676428 17514642 23352856 35029284 46705712 70058568 93411424 140117136 280234272