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18376085905 = 54385470167
BaseRepresentation
bin10001000111010011…
…001101000110010001
31202102122211212220021
4101013103031012101
5300113234222110
612235235143441
71220243103322
oct210723150621
952378755807
1018376085905
11787a904361
12368a144b81
13196b11b018
14c64768449
157283e62da
hex4474cd191

18376085905 has 8 divisors (see below), whose sum is σ = 22564124352. Its totient is φ = 14358987888.

The previous prime is 18376085899. The next prime is 18376085939. The reversal of 18376085905 is 50958067381.

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

It is a cyclic number.

It is not a de Polignac number, because 18376085905 - 211 = 18376083857 is a prime.

It is a Duffinian number.

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, 42734869 + ... + 42735298.

It is an arithmetic number, because the mean of its divisors is an integer number (2820515544).

Almost surely, 218376085905 is an apocalyptic number.

It is an amenable number.

18376085905 is a deficient number, since it is larger than the sum of its proper divisors (4188038447).

18376085905 is an equidigital number, since it uses as much as digits as its factorization.

18376085905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85470215.

The product of its (nonzero) digits is 1814400, while the sum is 52.

The spelling of 18376085905 in words is "eighteen billion, three hundred seventy-six million, eighty-five thousand, nine hundred five".

Divisors: 1 5 43 215 85470167 427350835 3675217181 18376085905