Base | Representation |
---|---|
bin | 110001111001… |
… | …101000000101 |
3 | 220121120212221 |
4 | 301321220011 |
5 | 11322043333 |
6 | 1144212341 |
7 | 216121204 |
oct | 61715005 |
9 | 26546787 |
10 | 13081093 |
11 | 7425023 |
12 | 446a0b1 |
13 | 29300bc |
14 | 1a4723b |
15 | 1235d2d |
hex | c79a05 |
13081093 has 2 divisors, whose sum is σ = 13081094. Its totient is φ = 13081092.
The previous prime is 13081031. The next prime is 13081097. The reversal of 13081093 is 39018031.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 12723489 + 357604 = 3567^2 + 598^2 .
It is a cyclic number.
It is not a de Polignac number, because 13081093 - 29 = 13080581 is a prime.
It is a super-2 number, since 2×130810932 = 342229988149298, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13081097) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6540546 + 6540547.
It is an arithmetic number, because the mean of its divisors is an integer number (6540547).
Almost surely, 213081093 is an apocalyptic number.
It is an amenable number.
13081093 is a deficient number, since it is larger than the sum of its proper divisors (1).
13081093 is an equidigital number, since it uses as much as digits as its factorization.
13081093 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 648, while the sum is 25.
The square root of 13081093 is about 3616.7793684437. The cubic root of 13081093 is about 235.6213705065.
It can be divided in two parts, 1308 and 1093, that added together give a 4-th power (2401 = 74).
The spelling of 13081093 in words is "thirteen million, eighty-one thousand, ninety-three".
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