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220568260 = 225111002583
BaseRepresentation
bin11010010010110…
…01101011000100
3120101001000202211
431021121223010
5422431141020
633515313204
75315541103
oct1511315304
9511030684
10220568260
11103561220
1261a4b804
1336909283
142141803a
151456d85a
hexd259ac4

220568260 has 24 divisors (see below), whose sum is σ = 505302336. Its totient is φ = 80206560.

The previous prime is 220568191. The next prime is 220568269. The reversal of 220568260 is 62865022.

It is not an unprimeable number, because it can be changed into a prime (220568269) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 501072 + ... + 501511.

It is an arithmetic number, because the mean of its divisors is an integer number (21054264).

Almost surely, 2220568260 is an apocalyptic number.

220568260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220568260 is an abundant number, since it is smaller than the sum of its proper divisors (284734076).

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

220568260 is a wasteful number, since it uses less digits than its factorization.

220568260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002603 (or 1002601 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 220568260 is about 14851.5406608203. The cubic root of 220568260 is about 604.2003962038.

The spelling of 220568260 in words is "two hundred twenty million, five hundred sixty-eight thousand, two hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1002583 2005166 4010332 5012915 10025830 11028413 20051660 22056826 44113652 55142065 110284130 220568260