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18094474476 = 22321343899149
BaseRepresentation
bin10000110110100000…
…111100010011101100
31201201000221112122100
4100312200330103230
5244024141140401
612151255215100
71210253331621
oct206640742354
951630845570
1018094474476
11774594a541
12360b977490
13192498b040
14c391c0348
1570d81ab86
hex43683c4ec

18094474476 has 72 divisors (see below), whose sum is σ = 50402752400. Its totient is φ = 5438047104.

The previous prime is 18094474457. The next prime is 18094474481. The reversal of 18094474476 is 67447449081.

18094474476 is a `hidden beast` number, since 1 + 80 + 94 + 4 + 7 + 4 + 476 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 429451 + ... + 469698.

Almost surely, 218094474476 is an apocalyptic number.

It is an amenable number.

18094474476 is an abundant number, since it is smaller than the sum of its proper divisors (32308277924).

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

18094474476 is a wasteful number, since it uses less digits than its factorization.

18094474476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899215 (or 899210 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 18094474476 in words is "eighteen billion, ninety-four million, four hundred seventy-four thousand, four hundred seventy-six".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 43 52 78 86 117 129 156 172 234 258 387 468 516 559 774 1118 1548 1677 2236 3354 5031 6708 10062 20124 899149 1798298 2697447 3596596 5394894 8092341 10789788 11688937 16184682 23377874 32369364 35066811 38663407 46755748 70133622 77326814 105200433 115990221 140267244 154653628 210400866 231980442 347970663 420801732 463960884 502624291 695941326 1005248582 1391882652 1507872873 2010497164 3015745746 4523618619 6031491492 9047237238 18094474476