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18357116942 = 262233147487
BaseRepresentation
bin10001000110001010…
…110110000000001110
31202101100011011101002
4101012022312000032
5300043410220232
612233320420302
71216622630243
oct210612660016
952340134332
1018357116942
11787012872a
123683917692
131967208c98
14c6202b5ca
157268eab62
hex4462b600e

18357116942 has 8 divisors (see below), whose sum is σ = 27536304576. Its totient is φ = 9178348752.

The previous prime is 18357116929. The next prime is 18357116977. The reversal of 18357116942 is 24961175381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50723 + ... + 198209.

It is an arithmetic number, because the mean of its divisors is an integer number (3442038072).

Almost surely, 218357116942 is an apocalyptic number.

18357116942 is a deficient number, since it is larger than the sum of its proper divisors (9179187634).

18357116942 is a wasteful number, since it uses less digits than its factorization.

18357116942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209722.

The product of its digits is 362880, while the sum is 47.

The spelling of 18357116942 in words is "eighteen billion, three hundred fifty-seven million, one hundred sixteen thousand, nine hundred forty-two".

Divisors: 1 2 62233 124466 147487 294974 9178558471 18357116942