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220256260 = 225710331523
BaseRepresentation
bin11010010000011…
…01100000000100
3120100110011210021
431020031200010
5422341200020
633504504524
75313101350
oct1510154004
9510404707
10220256260
11103368874
126191b144
133682a263
1421376460
151450b1aa
hexd20d804

220256260 has 48 divisors (see below), whose sum is σ = 529474176. Its totient is φ = 75393792.

The previous prime is 220256249. The next prime is 220256279. The reversal of 220256260 is 62652022.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143859 + ... + 145381.

It is an arithmetic number, because the mean of its divisors is an integer number (11030712).

Almost surely, 2220256260 is an apocalyptic number.

220256260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220256260 is an abundant number, since it is smaller than the sum of its proper divisors (309217916).

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

220256260 is a wasteful number, since it uses less digits than its factorization.

220256260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572 (or 2570 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 220256260 is about 14841.0329829160. The cubic root of 220256260 is about 603.9153756271.

The spelling of 220256260 in words is "two hundred twenty million, two hundred fifty-six thousand, two hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1033 1523 2066 3046 4132 5165 6092 7231 7615 10330 10661 14462 15230 20660 21322 28924 30460 36155 42644 53305 72310 106610 144620 213220 1573259 3146518 6293036 7866295 11012813 15732590 22025626 31465180 44051252 55064065 110128130 220256260