Base | Representation |
---|---|
bin | 10001001001101000… |
… | …010110010110001010 |
3 | 1202112101102020100210 |
4 | 101021220112112022 |
5 | 300203241330432 |
6 | 12243153141550 |
7 | 1221226321611 |
oct | 211150262612 |
9 | 52471366323 |
10 | 18415183242 |
11 | 789a988805 |
12 | 369b25a8b6 |
13 | 1976259a41 |
14 | c69a24878 |
15 | 72ba6a8cc |
hex | 449a1658a |
18415183242 has 16 divisors (see below), whose sum is σ = 36918272160. Its totient is φ = 6123743472.
The previous prime is 18415183187. The next prime is 18415183271. The reversal of 18415183242 is 24238151481.
It is a self number, because there is not a number n which added to its sum of digits gives 18415183242.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3660013 + ... + 3665040.
It is an arithmetic number, because the mean of its divisors is an integer number (2307392010).
Almost surely, 218415183242 is an apocalyptic number.
18415183242 is an abundant number, since it is smaller than the sum of its proper divisors (18503088918).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18415183242 is a wasteful number, since it uses less digits than its factorization.
18415183242 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7325477.
The product of its digits is 61440, while the sum is 39.
The spelling of 18415183242 in words is "eighteen billion, four hundred fifteen million, one hundred eighty-three thousand, two hundred forty-two".
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