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18098910028 = 22192129111857
BaseRepresentation
bin10000110110110001…
…110111001101001100
31201201100021220002001
4100312301313031030
5244031310110103
612151534242044
71210336124353
oct206661671514
951640256061
1018098910028
1177483a9a91
123611356324
131925881c24
14c39a1699a
1570dde501d
hex436c7734c

18098910028 has 24 divisors (see below), whose sum is σ = 33356055600. Its totient is φ = 8569064448.

The previous prime is 18098910007. The next prime is 18098910043. The reversal of 18098910028 is 82001989081.

It is a self number, because there is not a number n which added to its sum of digits gives 18098910028.

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, 105876 + ... + 217732.

It is an arithmetic number, because the mean of its divisors is an integer number (1389835650).

Almost surely, 218098910028 is an apocalyptic number.

It is an amenable number.

18098910028 is a deficient number, since it is larger than the sum of its proper divisors (15257145572).

18098910028 is a wasteful number, since it uses less digits than its factorization.

18098910028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114009 (or 114007 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 46.

The spelling of 18098910028 in words is "eighteen billion, ninety-eight million, nine hundred ten thousand, twenty-eight".

Divisors: 1 2 4 19 38 76 2129 4258 8516 40451 80902 111857 161804 223714 447428 2125283 4250566 8501132 238143553 476287106 952574212 4524727507 9049455014 18098910028