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18034579613 = 307479912241
BaseRepresentation
bin10000110010111100…
…011101100010011101
31201112212020120100002
4100302330131202131
5243413323021423
612141315344045
71205625253211
oct206274354235
951485216302
1018034579613
117715060656
1235b38b2025
131915449bab
14c3126c941
15708439228
hex432f1d89d

18034579613 has 8 divisors (see below), whose sum is σ = 18098572800. Its totient is φ = 17970621120.

The previous prime is 18034579571. The next prime is 18034579621. The reversal of 18034579613 is 31697543081.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18034579613 - 28 = 18034579357 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 (18034539613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1467173 + ... + 1479413.

It is an arithmetic number, because the mean of its divisors is an integer number (2262321600).

Almost surely, 218034579613 is an apocalyptic number.

It is an amenable number.

18034579613 is a deficient number, since it is larger than the sum of its proper divisors (63993187).

18034579613 is a wasteful number, since it uses less digits than its factorization.

18034579613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17347.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 18034579613 in words is "eighteen billion, thirty-four million, five hundred seventy-nine thousand, six hundred thirteen".

Divisors: 1 307 4799 12241 1473293 3757987 58744559 18034579613