Base | Representation |
---|---|
bin | 10000110110010111… |
… | …111010000010100100 |
3 | 1201200212111012120000 |
4 | 100312113322002210 |
5 | 244023034342032 |
6 | 12151132341300 |
7 | 1210224235260 |
oct | 206627720244 |
9 | 51625435500 |
10 | 18092105892 |
11 | 7744581a33 |
12 | 360b014830 |
13 | 192433bc03 |
14 | c38b650a0 |
15 | 70d4ede7c |
hex | 4365fa0a4 |
18092105892 has 60 divisors (see below), whose sum is σ = 54052965120. Its totient is φ = 5169172464.
The previous prime is 18092105849. The next prime is 18092105893. The reversal of 18092105892 is 29850129081.
It is a super-2 number, since 2×180921058922 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (18092105893) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3986292 + ... + 3990827.
It is an arithmetic number, because the mean of its divisors is an integer number (900882752).
Almost surely, 218092105892 is an apocalyptic number.
18092105892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
18092105892 is an abundant number, since it is smaller than the sum of its proper divisors (35960859228).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18092105892 is a wasteful number, since it uses less digits than its factorization.
18092105892 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7977142 (or 7977131 counting only the distinct ones).
The product of its (nonzero) digits is 103680, while the sum is 45.
The spelling of 18092105892 in words is "eighteen billion, ninety-two million, one hundred five thousand, eight hundred ninety-two".
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