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18137098796 = 2225183180053
BaseRepresentation
bin10000111001000011…
…100010101000101100
31201211000011002012212
4100321003202220230
5244121044130141
612155420545552
71211311540025
oct207103425054
951730132185
1018137098796
117767a12853
1236220b22b8
13193076322b
14c40b17c4c
1571243a2eb
hex4390e2a2c

18137098796 has 12 divisors (see below), whose sum is σ = 31741359552. Its totient is φ = 9068138928.

The previous prime is 18137098757. The next prime is 18137098813. The reversal of 18137098796 is 69789073181.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10706 + ... + 190758.

It is an arithmetic number, because the mean of its divisors is an integer number (2645113296).

Almost surely, 218137098796 is an apocalyptic number.

It is an amenable number.

18137098796 is a deficient number, since it is larger than the sum of its proper divisors (13604260756).

18137098796 is a wasteful number, since it uses less digits than its factorization.

18137098796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205240 (or 205238 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 59.

The spelling of 18137098796 in words is "eighteen billion, one hundred thirty-seven million, ninety-eight thousand, seven hundred ninety-six".

Divisors: 1 2 4 25183 50366 100732 180053 360106 720212 4534274699 9068549398 18137098796