Base | Representation |
---|---|
bin | 100010011101… |
… | …1111100001000 |
3 | 1021000010011120 |
4 | 1010323330020 |
5 | 14111240204 |
6 | 1443155240 |
7 | 306414006 |
oct | 104737410 |
9 | 37003146 |
10 | 18071304 |
11 | a223269 |
12 | 6075b20 |
13 | 39895a4 |
14 | 2585a76 |
15 | 18be6d9 |
hex | 113bf08 |
18071304 has 32 divisors (see below), whose sum is σ = 46033920. Its totient is φ = 5909696.
The previous prime is 18071297. The next prime is 18071351. The reversal of 18071304 is 40317081.
It is a Harshad number since it is a multiple of its sum of digits (24).
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, 5832 + ... + 8375.
It is an arithmetic number, because the mean of its divisors is an integer number (1438560).
Almost surely, 218071304 is an apocalyptic number.
It is an amenable number.
18071304 is an abundant number, since it is smaller than the sum of its proper divisors (27962616).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18071304 is a wasteful number, since it uses less digits than its factorization.
18071304 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14269 (or 14265 counting only the distinct ones).
The product of its (nonzero) digits is 672, while the sum is 24.
The square root of 18071304 is about 4251.0356385239. The cubic root of 18071304 is about 262.4197378198.
Adding to 18071304 its reverse (40317081), we get a palindrome (58388385).
The spelling of 18071304 in words is "eighteen million, seventy-one thousand, three hundred four".
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