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18706088007 = 322078454223
BaseRepresentation
bin10001011010111110…
…000100000001000111
31210021122210201200100
4101122332010001013
5301302224304012
612332104215143
71231361060505
oct213276040107
953248721610
1018706088007
117a2a10a872
12376076a4b3
1319c15c1a39
14c9650b675
1574737e8dc
hex45af84047

18706088007 has 6 divisors (see below), whose sum is σ = 27019904912. Its totient is φ = 12470725332.

The previous prime is 18706088003. The next prime is 18706088017. The reversal of 18706088007 is 70088060781.

It is not a de Polignac number, because 18706088007 - 22 = 18706088003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18706088003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1039227103 + ... + 1039227120.

Almost surely, 218706088007 is an apocalyptic number.

18706088007 is a deficient number, since it is larger than the sum of its proper divisors (8313816905).

18706088007 is a wasteful number, since it uses less digits than its factorization.

18706088007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078454229 (or 2078454226 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The spelling of 18706088007 in words is "eighteen billion, seven hundred six million, eighty-eight thousand, seven".

Divisors: 1 3 9 2078454223 6235362669 18706088007