Base | Representation |
---|---|
bin | 110010101100… |
… | …011010110001 |
3 | 221000011021021 |
4 | 302230122301 |
5 | 11400223022 |
6 | 1152455441 |
7 | 220645561 |
oct | 62543261 |
9 | 27004237 |
10 | 13289137 |
11 | 7557364 |
12 | 454a581 |
13 | 29a39c4 |
14 | 1a9cda1 |
15 | 12777c7 |
hex | cac6b1 |
13289137 has 4 divisors (see below), whose sum is σ = 13386276. Its totient is φ = 13192000.
The previous prime is 13289123. The next prime is 13289149. The reversal of 13289137 is 73198231.
13289137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 8946081 + 4343056 = 2991^2 + 2084^2 .
It is a cyclic number.
It is not a de Polignac number, because 13289137 - 219 = 12764849 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13289197) 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, 48364 + ... + 48637.
It is an arithmetic number, because the mean of its divisors is an integer number (3346569).
Almost surely, 213289137 is an apocalyptic number.
It is an amenable number.
13289137 is a deficient number, since it is larger than the sum of its proper divisors (97139).
13289137 is an equidigital number, since it uses as much as digits as its factorization.
13289137 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 97138.
The product of its digits is 9072, while the sum is 34.
The square root of 13289137 is about 3645.4268611508. The cubic root of 13289137 is about 236.8639275392.
The spelling of 13289137 in words is "thirteen million, two hundred eighty-nine thousand, one hundred thirty-seven".
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