Base | Representation |
---|---|
bin | 110001111010… |
… | …000001000001 |
3 | 220121200002001 |
4 | 301322001001 |
5 | 11322121224 |
6 | 1144224001 |
7 | 216125644 |
oct | 61720101 |
9 | 26550061 |
10 | 13082689 |
11 | 7426244 |
12 | 446b001 |
13 | 2930a49 |
14 | 1a47a5b |
15 | 1236544 |
hex | c7a041 |
13082689 has 3 divisors (see below), whose sum is σ = 13086307. Its totient is φ = 13079072.
The previous prime is 13082687. The next prime is 13082711. The reversal of 13082689 is 98628031.
The square root of 13082689 is 3617.
It is a perfect power (a square), and thus also a powerful number.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It can be written as a sum of positive squares in only one way, i.e., 65025 + 13017664 = 255^2 + 3608^2 .
It is not a de Polignac number, because 13082689 - 21 = 13082687 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13082687) by changing a digit.
It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1809 + ... + 5425.
Almost surely, 213082689 is an apocalyptic number.
13082689 is the 3617-th square number.
13082689 is the 1809-th centered octagonal number.
It is an amenable number.
13082689 is a deficient number, since it is larger than the sum of its proper divisors (3618).
13082689 is an frugal number, since it uses more digits than its factorization.
13082689 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7234 (or 3617 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 37.
The cubic root of 13082689 is about 235.6309526929.
Multiplying 13082689 by its product of nonzero digits (20736), we get a square (271282639104 = 5208482).
The spelling of 13082689 in words is "thirteen million, eighty-two thousand, six hundred eighty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.062 sec. • engine limits •