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18116048929 = 1117149650183
BaseRepresentation
bin10000110111110011…
…001111100000100001
31201202112112122020011
4100313303033200201
5244100202031204
612153345444521
71210634606116
oct206763174041
951675478204
1018116048929
117757045770
123617040741
1319292a2ca4
14c3bdd890d
1571067d304
hex437ccf821

18116048929 has 16 divisors (see below), whose sum is σ = 21065961600. Its totient is φ = 15396309760.

The previous prime is 18116048917. The next prime is 18116048933. The reversal of 18116048929 is 92984061181.

It is not a de Polignac number, because 18116048929 - 25 = 18116048897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18116048989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297229 + ... + 352954.

It is an arithmetic number, because the mean of its divisors is an integer number (1316622600).

Almost surely, 218116048929 is an apocalyptic number.

It is an amenable number.

18116048929 is a deficient number, since it is larger than the sum of its proper divisors (2949912671).

18116048929 is a wasteful number, since it uses less digits than its factorization.

18116048929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650360.

The product of its (nonzero) digits is 248832, while the sum is 49.

The spelling of 18116048929 in words is "eighteen billion, one hundred sixteen million, forty-eight thousand, nine hundred twenty-nine".

Divisors: 1 11 17 149 187 1639 2533 27863 650183 7152013 11053111 96877267 121584221 1065649937 1646913539 18116048929