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255279072 = 25317156421
BaseRepresentation
bin11110011011100…
…11111111100000
3122210100112001110
433031303333200
51010322412242
641155303320
76216556566
oct1715637740
9583315043
10255279072
11121109a44
12715aab40
1340b70509
1425c91a36
151762839c
hexf373fe0

255279072 has 48 divisors (see below), whose sum is σ = 709530192. Its totient is φ = 80087040.

The previous prime is 255279067. The next prime is 255279097. The reversal of 255279072 is 270972552.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 255279072.

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, 76579 + ... + 79842.

It is an arithmetic number, because the mean of its divisors is an integer number (14781879).

Almost surely, 2255279072 is an apocalyptic number.

It is an amenable number.

255279072 is an abundant number, since it is smaller than the sum of its proper divisors (454251120).

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

255279072 is a wasteful number, since it uses less digits than its factorization.

255279072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156451 (or 156443 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 255279072 is about 15977.4551165071. The cubic root of 255279072 is about 634.3638177618.

The spelling of 255279072 in words is "two hundred fifty-five million, two hundred seventy-nine thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 48 51 68 96 102 136 204 272 408 544 816 1632 156421 312842 469263 625684 938526 1251368 1877052 2502736 2659157 3754104 5005472 5318314 7508208 7977471 10636628 15016416 15954942 21273256 31909884 42546512 63819768 85093024 127639536 255279072