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220913982 = 23215837753
BaseRepresentation
bin11010010101011…
…10000100111110
3120101200121000100
431022232010332
5423023221412
633530541530
75321511042
oct1512560476
9511617010
10220913982
11103777a43
1261b978a6
13369ca743
14214a8022
15145daedc
hexd2ae13e

220913982 has 24 divisors (see below), whose sum is σ = 479011104. Its totient is φ = 73581984.

The previous prime is 220913981. The next prime is 220913989. The reversal of 220913982 is 289319022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220913981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24618 + ... + 32370.

It is an arithmetic number, because the mean of its divisors is an integer number (19958796).

Almost surely, 2220913982 is an apocalyptic number.

220913982 is an abundant number, since it is smaller than the sum of its proper divisors (258097122).

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

220913982 is a wasteful number, since it uses less digits than its factorization.

220913982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9344 (or 9341 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 220913982 is about 14863.1753673298. The cubic root of 220913982 is about 604.5159090034.

The spelling of 220913982 in words is "two hundred twenty million, nine hundred thirteen thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 9 18 1583 3166 4749 7753 9498 14247 15506 23259 28494 46518 69777 139554 12272999 24545998 36818997 73637994 110456991 220913982