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18375483976 = 234156022817
BaseRepresentation
bin10001000111010000…
…111010001001001000
31202102121201022012121
4101013100322021020
5300113110441401
612235214221024
71220235015403
oct210720721110
952377638177
1018375483976
11787a5330a3
123689ab4774
13196ac6a055
14c6464cd3a
15728327ca1
hex44743a248

18375483976 has 16 divisors (see below), whose sum is σ = 35294375340. Its totient is φ = 8963650560.

The previous prime is 18375483967. The next prime is 18375483989. The reversal of 18375483976 is 67938457381.

It can be written as a sum of positive squares in 2 ways, for example, as 12293043876 + 6082440100 = 110874^2 + 77990^2 .

It is a super-2 number, since 2×183754839762 (a number of 21 digits) contains 22 as substring.

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, 28011081 + ... + 28011736.

Almost surely, 218375483976 is an apocalyptic number.

It is an amenable number.

18375483976 is a deficient number, since it is larger than the sum of its proper divisors (16918891364).

18375483976 is a wasteful number, since it uses less digits than its factorization.

18375483976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56022864 (or 56022860 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 61.

The spelling of 18375483976 in words is "eighteen billion, three hundred seventy-five million, four hundred eighty-three thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 41 82 164 328 56022817 112045634 224091268 448182536 2296935497 4593870994 9187741988 18375483976