Base | Representation |
---|---|
bin | 110100101001… |
… | …010111001001 |
3 | 221222011021122 |
4 | 310221113021 |
5 | 12013112110 |
6 | 1211445025 |
7 | 225206606 |
oct | 64512711 |
9 | 27864248 |
10 | 13800905 |
11 | 7876908 |
12 | 4756775 |
13 | 2b22921 |
14 | 1b936ad |
15 | 1329255 |
hex | d295c9 |
13800905 has 8 divisors (see below), whose sum is σ = 16771200. Its totient is φ = 10900656.
The previous prime is 13800883. The next prime is 13800931. The reversal of 13800905 is 50900831.
13800905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13800905 - 26 = 13800841 is a prime.
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, 17075 + ... + 17864.
It is an arithmetic number, because the mean of its divisors is an integer number (2096400).
Almost surely, 213800905 is an apocalyptic number.
It is an amenable number.
13800905 is a deficient number, since it is larger than the sum of its proper divisors (2970295).
13800905 is an equidigital number, since it uses as much as digits as its factorization.
13800905 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35023.
The product of its (nonzero) digits is 1080, while the sum is 26.
The square root of 13800905 is about 3714.9569311097. The cubic root of 13800905 is about 239.8662738823.
The spelling of 13800905 in words is "thirteen million, eight hundred thousand, nine hundred five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •