Base | Representation |
---|---|
bin | 10001000101000111… |
… | …111101000011000000 |
3 | 1202100010011022011010 |
4 | 101011013331003000 |
5 | 300024413112034 |
6 | 12231452520520 |
7 | 1216320606342 |
oct | 210507750300 |
9 | 52303138133 |
10 | 18339582144 |
11 | 7861241564 |
12 | 3679a80140 |
13 | 19636a9970 |
14 | c5d985292 |
15 | 7250d53e9 |
hex | 4451fd0c0 |
18339582144 has 112 divisors (see below), whose sum is σ = 53941959680. Its totient is φ = 5460894720.
The previous prime is 18339582109. The next prime is 18339582181. The reversal of 18339582144 is 44128593381.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a junction number, because it is equal to n+sod(n) for n = 18339582093 and 18339582102.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41134 + ... + 195885.
It is an arithmetic number, because the mean of its divisors is an integer number (481624640).
Almost surely, 218339582144 is an apocalyptic number.
It is an amenable number.
18339582144 is an abundant number, since it is smaller than the sum of its proper divisors (35602377536).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18339582144 is a wasteful number, since it uses less digits than its factorization.
18339582144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 237078 (or 237068 counting only the distinct ones).
The product of its digits is 829440, while the sum is 48.
The spelling of 18339582144 in words is "eighteen billion, three hundred thirty-nine million, five hundred eighty-two thousand, one hundred forty-four".
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