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255942288 = 243372107113
BaseRepresentation
bin11110100000101…
…01111010010000
3122211121012211000
433100111322100
51011010123123
641221422000
76225321300
oct1720257220
9584535730
10255942288
11121522258
127186a900
1341043354
1425dc5600
1517709b43
hexf415e90

255942288 has 240 divisors, whose sum is σ = 870212160. Its totient is φ = 71801856.

The previous prime is 255942277. The next prime is 255942311. The reversal of 255942288 is 882249552.

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 47 ways as a sum of consecutive naturals, for example, 2264920 + ... + 2265032.

It is an arithmetic number, because the mean of its divisors is an integer number (3625884).

Almost surely, 2255942288 is an apocalyptic number.

255942288 is a gapful number since it is divisible by the number (28) 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 255942288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435106080).

255942288 is an abundant number, since it is smaller than the sum of its proper divisors (614269872).

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

255942288 is a wasteful number, since it uses less digits than its factorization.

255942288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 232 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 255942288 is about 15998.1963983444. The cubic root of 255942288 is about 634.9127025713.

The spelling of 255942288 in words is "two hundred fifty-five million, nine hundred forty-two thousand, two hundred eighty-eight".