Base | Representation |
---|---|
bin | 110001101100… |
… | …101101101101 |
3 | 220111220100010 |
4 | 301230231231 |
5 | 11313400310 |
6 | 1143123433 |
7 | 215511051 |
oct | 61545555 |
9 | 26456303 |
10 | 13028205 |
11 | 7399313 |
12 | 4443579 |
13 | 2911cc8 |
14 | 1a31c61 |
15 | 1225320 |
hex | c6cb6d |
13028205 has 32 divisors (see below), whose sum is σ = 23241600. Its totient is φ = 6193152.
The previous prime is 13028179. The next prime is 13028207. The reversal of 13028205 is 50282031.
It is not a de Polignac number, because 13028205 - 25 = 13028173 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13028207) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3501 + ... + 6189.
It is an arithmetic number, because the mean of its divisors is an integer number (726300).
Almost surely, 213028205 is an apocalyptic number.
13028205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13028205 is a deficient number, since it is larger than the sum of its proper divisors (10213395).
13028205 is a wasteful number, since it uses less digits than its factorization.
13028205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2733.
The product of its (nonzero) digits is 480, while the sum is 21.
The square root of 13028205 is about 3609.4604860006. The cubic root of 13028205 is about 235.3033956697.
The spelling of 13028205 in words is "thirteen million, twenty-eight thousand, two hundred five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •