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18134353368 = 23321271983197
BaseRepresentation
bin10000111000111001…
…000100010111011000
31201210210222121012100
4100320321010113120
5244114343301433
612155242043400
71211246313615
oct207071042730
951723877170
1018134353368
1177664080aa
1236211a9560
131930011711
14c4060150c
15712096b13
hex438e445d8

18134353368 has 48 divisors (see below), whose sum is σ = 49500622080. Its totient is φ = 5997184704.

The previous prime is 18134353333. The next prime is 18134353421. The reversal of 18134353368 is 86335343181.

18134353368 is a `hidden beast` number, since 1 + 8 + 13 + 43 + 533 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 982455 + ... + 1000742.

It is an arithmetic number, because the mean of its divisors is an integer number (1031262960).

Almost surely, 218134353368 is an apocalyptic number.

18134353368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18134353368 is an abundant number, since it is smaller than the sum of its proper divisors (31366268712).

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

18134353368 is a wasteful number, since it uses less digits than its factorization.

18134353368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983336 (or 1983329 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 18134353368 in words is "eighteen billion, one hundred thirty-four million, three hundred fifty-three thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 127 254 381 508 762 1016 1143 1524 2286 3048 4572 9144 1983197 3966394 5949591 7932788 11899182 15865576 17848773 23798364 35697546 47596728 71395092 142790184 251866019 503732038 755598057 1007464076 1511196114 2014928152 2266794171 3022392228 4533588342 6044784456 9067176684 18134353368