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18384022002 = 2314964331981
BaseRepresentation
bin10001000111110001…
…011110100111110010
31202110012210002011210
4101013301132213302
5300122302201002
612240121220550
71220400415533
oct210761364762
952405702153
1018384022002
117884334915
123690931756
13196c969338
14c6583268a
15728e6296c
hex447c5e9f2

18384022002 has 32 divisors (see below), whose sum is σ = 37073534400. Its totient is φ = 6077223360.

The previous prime is 18384021961. The next prime is 18384022043. The reversal of 18384022002 is 20022048381.

It is an interprime number because it is at equal distance from previous prime (18384021961) and next prime (18384022043).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 558852 + ... + 590832.

It is an arithmetic number, because the mean of its divisors is an integer number (1158547950).

Almost surely, 218384022002 is an apocalyptic number.

18384022002 is an abundant number, since it is smaller than the sum of its proper divisors (18689512398).

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

18384022002 is a wasteful number, since it uses less digits than its factorization.

18384022002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32778.

The product of its (nonzero) digits is 6144, while the sum is 30.

The spelling of 18384022002 in words is "eighteen billion, three hundred eighty-four million, twenty-two thousand, two".

Divisors: 1 2 3 6 149 298 447 643 894 1286 1929 3858 31981 63962 95807 95943 191614 191886 287421 574842 4765169 9530338 14295507 20563783 28591014 41127566 61691349 123382698 3064003667 6128007334 9192011001 18384022002