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18382472004 = 22313117836359
BaseRepresentation
bin10001000111101011…
…100100001101000100
31202110002212022222110
4101013223210031010
5300121403101004
612240024101020
71220351301561
oct210753441504
952402768873
1018382472004
117883476326
123690304770
13196c545990
14c6554b868
15728c58589
hex447ae4344

18382472004 has 24 divisors (see below), whose sum is σ = 46191853120. Its totient is φ = 5656145184.

The previous prime is 18382471949. The next prime is 18382472021. The reversal of 18382472004 is 40027428381.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58918024 + ... + 58918335.

Almost surely, 218382472004 is an apocalyptic number.

It is an amenable number.

18382472004 is an abundant number, since it is smaller than the sum of its proper divisors (27809381116).

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

18382472004 is a wasteful number, since it uses less digits than its factorization.

18382472004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117836379 (or 117836377 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The spelling of 18382472004 in words is "eighteen billion, three hundred eighty-two million, four hundred seventy-two thousand, four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 117836359 235672718 353509077 471345436 707018154 1414036308 1531872667 3063745334 4595618001 6127490668 9191236002 18382472004