Base | Representation |
---|---|
bin | 100010010101… |
… | …0101110011011 |
3 | 1020212112110010 |
4 | 1010222232123 |
5 | 14102011140 |
6 | 1441453003 |
7 | 306001311 |
oct | 104525633 |
9 | 36775403 |
10 | 18000795 |
11 | a18529a |
12 | 6041163 |
13 | 3963477 |
14 | 25680b1 |
15 | 18a8880 |
hex | 112ab9b |
18000795 has 32 divisors (see below), whose sum is σ = 29712384. Its totient is φ = 9302400.
The previous prime is 18000779. The next prime is 18000797. The reversal of 18000795 is 59700081.
It is not a de Polignac number, because 18000795 - 24 = 18000779 is a prime.
It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is not an unprimeable number, because it can be changed into a prime (18000797) by changing a digit.
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 31 ways as a sum of consecutive naturals, for example, 94150 + ... + 94340.
It is an arithmetic number, because the mean of its divisors is an integer number (928512).
Almost surely, 218000795 is an apocalyptic number.
18000795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
18000795 is a deficient number, since it is larger than the sum of its proper divisors (11711589).
18000795 is a wasteful number, since it uses less digits than its factorization.
18000795 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 363.
The product of its (nonzero) digits is 2520, while the sum is 30.
The square root of 18000795 is about 4242.7343777333. The cubic root of 18000795 is about 262.0779976778.
The spelling of 18000795 in words is "eighteen million, seven hundred ninety-five", and thus it is an aban number.
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •