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18107564224 = 261914891089
BaseRepresentation
bin10000110111010010…
…111000000011000000
31201201221120120101211
4100313102320003000
5244041014023344
612152443535504
71210502520301
oct206722700300
951657516354
1018107564224
117752280012
12361422a594
1319275c2059
14c3ac2a7a8
1570ea54334
hex4374b80c0

18107564224 has 28 divisors (see below), whose sum is σ = 37823368600. Its totient is φ = 8577266688.

The previous prime is 18107564201. The next prime is 18107564227. The reversal of 18107564224 is 42246570181.

It is not an unprimeable number, because it can be changed into a prime (18107564227) 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 3 ways as a sum of consecutive naturals, for example, 7444329 + ... + 7446760.

Almost surely, 218107564224 is an apocalyptic number.

It is an amenable number.

18107564224 is an abundant number, since it is smaller than the sum of its proper divisors (19715804376).

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

18107564224 is a wasteful number, since it uses less digits than its factorization.

18107564224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14891120 (or 14891110 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 18107564224 in words is "eighteen billion, one hundred seven million, five hundred sixty-four thousand, two hundred twenty-four".

Divisors: 1 2 4 8 16 19 32 38 64 76 152 304 608 1216 14891089 29782178 59564356 119128712 238257424 282930691 476514848 565861382 953029696 1131722764 2263445528 4526891056 9053782112 18107564224