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18996264234 = 233907387853
BaseRepresentation
bin10001101100010000…
…111111110100101010
31211000212211012122000
4101230100333310222
5302401020423414
612420551511430
71241513403363
oct215420776452
954025735560
1018996264234
118068994532
123821988576
131a3976024c
14cc2c84b6a
15762a9cb09
hex46c43fd2a

18996264234 has 32 divisors (see below), whose sum is σ = 42260571840. Its totient is φ = 6325090416.

The previous prime is 18996264211. The next prime is 18996264247. The reversal of 18996264234 is 43246269981.

18996264234 is a `hidden beast` number, since 1 + 8 + 9 + 9 + 626 + 4 + 2 + 3 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144949 + ... + 242904.

It is an arithmetic number, because the mean of its divisors is an integer number (1320642870).

Almost surely, 218996264234 is an apocalyptic number.

18996264234 is an abundant number, since it is smaller than the sum of its proper divisors (23264307606).

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

18996264234 is a wasteful number, since it uses less digits than its factorization.

18996264234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388771 (or 388765 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The spelling of 18996264234 in words is "eighteen billion, nine hundred ninety-six million, two hundred sixty-four thousand, two hundred thirty-four".

Divisors: 1 2 3 6 9 18 27 54 907 1814 2721 5442 8163 16326 24489 48978 387853 775706 1163559 2327118 3490677 6981354 10472031 20944062 351782671 703565342 1055348013 2110696026 3166044039 6332088078 9498132117 18996264234