Base | Representation |
---|---|
bin | 110010011001… |
… | …010111111001 |
3 | 220212012021002 |
4 | 302121113321 |
5 | 11340224004 |
6 | 1151054345 |
7 | 220202261 |
oct | 62312771 |
9 | 26765232 |
10 | 13211129 |
11 | 7503798 |
12 | 45113b5 |
13 | 2977349 |
14 | 1a7c7a1 |
15 | 125e61e |
hex | c995f9 |
13211129 has 2 divisors, whose sum is σ = 13211130. Its totient is φ = 13211128.
The previous prime is 13211123. The next prime is 13211161. The reversal of 13211129 is 92111231.
13211129 is nontrivially palindromic in base 14.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 7075600 + 6135529 = 2660^2 + 2477^2 .
It is a cyclic number.
It is not a de Polignac number, because 13211129 - 24 = 13211113 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 13211129.
It is not a weakly prime, because it can be changed into another prime (13211123) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6605564 + 6605565.
It is an arithmetic number, because the mean of its divisors is an integer number (6605565).
Almost surely, 213211129 is an apocalyptic number.
It is an amenable number.
13211129 is a deficient number, since it is larger than the sum of its proper divisors (1).
13211129 is an equidigital number, since it uses as much as digits as its factorization.
13211129 is an evil number, because the sum of its binary digits is even.
The product of its digits is 108, while the sum is 20.
The square root of 13211129 is about 3634.7116804500. The cubic root of 13211129 is about 236.3995494068.
The spelling of 13211129 in words is "thirteen million, two hundred eleven thousand, one hundred twenty-nine".
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