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255272864 = 25711211491
BaseRepresentation
bin11110011011100…
…10011110100000
3122210100012112112
433031302132200
51010322212424
641155214452
76216532520
oct1715623640
9583305475
10255272864
11121105310
12715a7428
1340b6a742
1425c8d680
151762660e
hexf3727a0

255272864 has 96 divisors (see below), whose sum is σ = 630830592. Its totient is φ = 98784000.

The previous prime is 255272821. The next prime is 255272869. The reversal of 255272864 is 468272552.

It is not an unprimeable number, because it can be changed into a prime (255272869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519659 + ... + 520149.

It is an arithmetic number, because the mean of its divisors is an integer number (6571152).

Almost surely, 2255272864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255272864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315415296).

255272864 is an abundant number, since it is smaller than the sum of its proper divisors (375557728).

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

255272864 is a wasteful number, since it uses less digits than its factorization.

255272864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 722 counting only the distinct ones).

The product of its digits is 268800, while the sum is 41.

The square root of 255272864 is about 15977.2608415836. The cubic root of 255272864 is about 634.3586754646.

The spelling of 255272864 in words is "two hundred fifty-five million, two hundred seventy-two thousand, eight hundred sixty-four".

Divisors: 1 2 4 7 8 11 14 16 22 28 32 44 56 77 88 112 154 176 211 224 308 352 422 491 616 844 982 1232 1477 1688 1964 2321 2464 2954 3376 3437 3928 4642 5401 5908 6752 6874 7856 9284 10802 11816 13748 15712 16247 18568 21604 23632 27496 32494 37136 37807 43208 47264 54992 64988 74272 75614 86416 103601 109984 129976 151228 172832 207202 259952 302456 414404 519904 604912 725207 828808 1139611 1209824 1450414 1657616 2279222 2900828 3315232 4558444 5801656 7977277 9116888 11603312 15954554 18233776 23206624 31909108 36467552 63818216 127636432 255272864