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255252228 = 223711276247
BaseRepresentation
bin11110011011011…
…01011100000100
3122210022011020020
433031231130010
51010321032403
641154535140
76216415410
oct1715553404
9583264206
10255252228
111210a0860
12715974b0
1340b6122a
1425c85d40
1517620453
hexf36d704

255252228 has 48 divisors (see below), whose sum is σ = 742554624. Its totient is φ = 66299040.

The previous prime is 255252227. The next prime is 255252241. The reversal of 255252228 is 822252552.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (255252227) 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, 137200 + ... + 139047.

It is an arithmetic number, because the mean of its divisors is an integer number (15469888).

Almost surely, 2255252228 is an apocalyptic number.

255252228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

255252228 is an abundant number, since it is smaller than the sum of its proper divisors (487302396).

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

255252228 is a wasteful number, since it uses less digits than its factorization.

255252228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276272 (or 276270 counting only the distinct ones).

The product of its digits is 32000, while the sum is 33.

The square root of 255252228 is about 15976.6150357327. The cubic root of 255252228 is about 634.3415813662.

The spelling of 255252228 in words is "two hundred fifty-five million, two hundred fifty-two thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 132 154 231 308 462 924 276247 552494 828741 1104988 1657482 1933729 3038717 3314964 3867458 5801187 6077434 7734916 9116151 11602374 12154868 18232302 21271019 23204748 36464604 42542038 63813057 85084076 127626114 255252228