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18479364982 = 2134319186539
BaseRepresentation
bin10001001101011101…
…001011101101110110
31202200212012000011021
4101031131023231312
5300321204134412
612253404531354
71222636003441
oct211535135566
952625160137
1018479364982
117923135471
1236b8850b5a
13198663c1c0
14c74370658
157324e7607
hex44d74bb76

18479364982 has 32 divisors (see below), whose sum is σ = 30705776640. Its totient is φ = 8286878880.

The previous prime is 18479364947. The next prime is 18479364991. The reversal of 18479364982 is 28946397481.

18479364982 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 18479364982.

It is a congruent number.

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, 170269 + ... + 256807.

It is an arithmetic number, because the mean of its divisors is an integer number (959555520).

Almost surely, 218479364982 is an apocalyptic number.

18479364982 is a deficient number, since it is larger than the sum of its proper divisors (12226411658).

18479364982 is a wasteful number, since it uses less digits than its factorization.

18479364982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86788.

The product of its digits is 20901888, while the sum is 61.

The spelling of 18479364982 in words is "eighteen billion, four hundred seventy-nine million, three hundred sixty-four thousand, nine hundred eighty-two".

Divisors: 1 2 13 26 43 86 191 382 559 1118 2483 4966 8213 16426 86539 106769 173078 213538 1125007 2250014 3721177 7442354 16528949 33057898 48375301 96750602 214876337 429752674 710744807 1421489614 9239682491 18479364982