Base | Representation |
---|---|
bin | 110010000001… |
… | …010100110101 |
3 | 220200012010221 |
4 | 302001110311 |
5 | 11324101004 |
6 | 1145014341 |
7 | 216312145 |
oct | 62012465 |
9 | 26605127 |
10 | 13112629 |
11 | 7446792 |
12 | 44843b1 |
13 | 294156a |
14 | 1a54925 |
15 | 1240354 |
hex | c81535 |
13112629 has 4 divisors (see below), whose sum is σ = 13157676. Its totient is φ = 13067584.
The previous prime is 13112609. The next prime is 13112639. The reversal of 13112629 is 92621131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92621131 = 2741 ⋅33791.
It can be written as a sum of positive squares in 2 ways, for example, as 9012004 + 4100625 = 3002^2 + 2025^2 .
It is a cyclic number.
It is not a de Polignac number, because 13112629 - 27 = 13112501 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13112609) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22084 + ... + 22669.
It is an arithmetic number, because the mean of its divisors is an integer number (3289419).
Almost surely, 213112629 is an apocalyptic number.
It is an amenable number.
13112629 is a deficient number, since it is larger than the sum of its proper divisors (45047).
13112629 is an equidigital number, since it uses as much as digits as its factorization.
13112629 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 45046.
The product of its digits is 648, while the sum is 25.
The square root of 13112629 is about 3621.1364238316. The cubic root of 13112629 is about 235.8105644908.
The spelling of 13112629 in words is "thirteen million, one hundred twelve thousand, six hundred twenty-nine".
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