Base | Representation |
---|---|
bin | 10000110110000100… |
… | …010000100010000001 |
3 | 1201200111210112001022 |
4 | 100312010100202001 |
5 | 244020230031022 |
6 | 12150430115225 |
7 | 1210132403426 |
oct | 206604204201 |
9 | 51614715038 |
10 | 18086955137 |
11 | 7741684109 |
12 | 360934bb15 |
13 | 1923257624 |
14 | c381c3d4d |
15 | 70cd32c42 |
hex | 436110881 |
18086955137 has 8 divisors (see below), whose sum is σ = 18377772480. Its totient is φ = 17797139920.
The previous prime is 18086955113. The next prime is 18086955179. The reversal of 18086955137 is 73155968081.
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 18086955137 - 230 = 17013213313 is a prime.
It is a super-2 number, since 2×180869551372 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (18086955737) 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, 214103 + ... + 286380.
It is an arithmetic number, because the mean of its divisors is an integer number (2297221560).
Almost surely, 218086955137 is an apocalyptic number.
It is an amenable number.
18086955137 is a deficient number, since it is larger than the sum of its proper divisors (290817343).
18086955137 is an equidigital number, since it uses as much as digits as its factorization.
18086955137 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 501063.
The product of its (nonzero) digits is 1814400, while the sum is 53.
The spelling of 18086955137 in words is "eighteen billion, eighty-six million, nine hundred fifty-five thousand, one hundred thirty-seven".
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