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18695146364 = 2217274928623
BaseRepresentation
bin10001011010010100…
…010100101101111100
31210020220012211120022
4101122110110231330
5301241424140424
612331033511312
71231166056616
oct213224245574
953226184508
1018695146364
117a23a17194
123758b72538
1319bc2606ab
14c94c9ddb6
1574641c95e
hex45a514b7c

18695146364 has 12 divisors (see below), whose sum is σ = 34641006624. Its totient is φ = 8797715904.

The previous prime is 18695146363. The next prime is 18695146403. The reversal of 18695146364 is 46364159681.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18695146361) 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 3 ways as a sum of consecutive naturals, for example, 137464244 + ... + 137464379.

It is an arithmetic number, because the mean of its divisors is an integer number (2886750552).

Almost surely, 218695146364 is an apocalyptic number.

It is an amenable number.

18695146364 is a deficient number, since it is larger than the sum of its proper divisors (15945860260).

18695146364 is a wasteful number, since it uses less digits than its factorization.

18695146364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274928644 (or 274928642 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 53.

The spelling of 18695146364 in words is "eighteen billion, six hundred ninety-five million, one hundred forty-six thousand, three hundred sixty-four".

Divisors: 1 2 4 17 34 68 274928623 549857246 1099714492 4673786591 9347573182 18695146364