Base | Representation |
---|---|
bin | 100010011111… |
… | …0100100011011 |
3 | 1021000122221111 |
4 | 1010332210123 |
5 | 14112111300 |
6 | 1443321151 |
7 | 306460264 |
oct | 104764433 |
9 | 37018844 |
10 | 18082075 |
11 | a230370 |
12 | 60801b7 |
13 | 399146b |
14 | 258996b |
15 | 18c29ba |
hex | 113e91b |
18082075 has 24 divisors (see below), whose sum is σ = 24998400. Its totient is φ = 12861600.
The previous prime is 18082019. The next prime is 18082087. The reversal of 18082075 is 57028081.
It is not a de Polignac number, because 18082075 - 29 = 18081563 is a prime.
It is a super-2 number, since 2×180820752 = 653922872611250, which contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12226 + ... + 13624.
It is an arithmetic number, because the mean of its divisors is an integer number (1041600).
Almost surely, 218082075 is an apocalyptic number.
18082075 is a deficient number, since it is larger than the sum of its proper divisors (6916325).
18082075 is a wasteful number, since it uses less digits than its factorization.
18082075 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1467 (or 1462 counting only the distinct ones).
The product of its (nonzero) digits is 4480, while the sum is 31.
The square root of 18082075 is about 4252.3023175687. The cubic root of 18082075 is about 262.4718639534.
It can be divided in two parts, 1808 and 2075, that added together give a palindrome (3883).
The spelling of 18082075 in words is "eighteen million, eighty-two thousand, seventy-five".
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