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255250512 = 243211179479
BaseRepresentation
bin11110011011011…
…01000001010000
3122210022001212200
433031231001100
51010321004022
641154523200
76216410406
oct1715550120
9583261780
10255250512
1112109a540
1271596500
1340b6050a
1425c85476
151761ebac
hexf36d050

255250512 has 120 divisors (see below), whose sum is σ = 825215040. Its totient is φ = 72791040.

The previous prime is 255250507. The next prime is 255250577. The reversal of 255250512 is 215052552.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 22189 + ... + 31667.

It is an arithmetic number, because the mean of its divisors is an integer number (6876792).

Almost surely, 2255250512 is an apocalyptic number.

255250512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255250512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412607520).

255250512 is an abundant number, since it is smaller than the sum of its proper divisors (569964528).

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

255250512 is a wasteful number, since it uses less digits than its factorization.

255250512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9521 (or 9512 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 255250512 is about 15976.5613321515. The cubic root of 255250512 is about 634.3401598539.

The spelling of 255250512 in words is "two hundred fifty-five million, two hundred fifty thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 9 11 12 16 17 18 22 24 33 34 36 44 48 51 66 68 72 88 99 102 132 136 144 153 176 187 198 204 264 272 306 374 396 408 528 561 612 748 792 816 1122 1224 1496 1584 1683 2244 2448 2992 3366 4488 6732 8976 9479 13464 18958 26928 28437 37916 56874 75832 85311 104269 113748 151664 161143 170622 208538 227496 312807 322286 341244 417076 454992 483429 625614 644572 682488 834152 938421 966858 1251228 1289144 1364976 1450287 1668304 1772573 1876842 1933716 2502456 2578288 2900574 3545146 3753684 3867432 5004912 5317719 5801148 7090292 7507368 7734864 10635438 11602296 14180584 15014736 15953157 21270876 23204592 28361168 31906314 42541752 63812628 85083504 127625256 255250512