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11818432008 = 233443424147
BaseRepresentation
bin10110000000110111…
…01111011000001000
31010111122110112220000
423000123233120020
5143201004311013
65232422003000
7565605004665
oct130033573010
933448415800
1011818432008
115015218989
122359b76460
131164662046
14801876a6c
15492857973
hex2c06ef608

11818432008 has 80 divisors (see below), whose sum is σ = 33872459280. Its totient is φ = 3847852512.

The previous prime is 11818431983. The next prime is 11818432027. The reversal of 11818432008 is 80023481811.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 184210 + ... + 239937.

It is an arithmetic number, because the mean of its divisors is an integer number (423405741).

Almost surely, 211818432008 is an apocalyptic number.

11818432008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11818432008 is an abundant number, since it is smaller than the sum of its proper divisors (22054027272).

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

11818432008 is a wasteful number, since it uses less digits than its factorization.

11818432008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424208 (or 424195 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The spelling of 11818432008 in words is "eleven billion, eight hundred eighteen million, four hundred thirty-two thousand, eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 43 54 72 81 86 108 129 162 172 216 258 324 344 387 516 648 774 1032 1161 1548 2322 3096 3483 4644 6966 9288 13932 27864 424147 848294 1272441 1696588 2544882 3393176 3817323 5089764 7634646 10179528 11451969 15269292 18238321 22903938 30538584 34355907 36476642 45807876 54714963 68711814 72953284 91615752 109429926 137423628 145906568 164144889 218859852 274847256 328289778 437719704 492434667 656579556 984869334 1313159112 1477304001 1969738668 2954608002 3939477336 5909216004 11818432008