Base | Representation |
---|---|
bin | 10000111111011111… |
… | …011110011111110010 |
3 | 1202002112100100200012 |
4 | 100333133132133302 |
5 | 244331220211140 |
6 | 12214235254522 |
7 | 1214062444064 |
oct | 207737363762 |
9 | 52075310605 |
10 | 18245085170 |
11 | 7812969594 |
12 | 36522aa442 |
13 | 1949c41bb0 |
14 | c511c7734 |
15 | 71bb6b265 |
hex | 43f7de7f2 |
18245085170 has 64 divisors (see below), whose sum is σ = 37009133280. Its totient is φ = 6430814208.
The previous prime is 18245085167. The next prime is 18245085211. The reversal of 18245085170 is 7158054281.
It can be written as a sum of positive squares in 16 ways, for example, as 6217795609 + 12027289561 = 78853^2 + 109669^2 .
It is a super-3 number, since 3×182450851703 (a number of 32 digits) contains 333 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219146 + ... + 290714.
Almost surely, 218245085170 is an apocalyptic number.
18245085170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18245085170 is an abundant number, since it is smaller than the sum of its proper divisors (18764048110).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18245085170 is a wasteful number, since it uses less digits than its factorization.
18245085170 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 71679.
The product of its (nonzero) digits is 89600, while the sum is 41.
The spelling of 18245085170 in words is "eighteen billion, two hundred forty-five million, eighty-five thousand, one hundred seventy".
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