Base | Representation |
---|---|
bin | 110010111010… |
… | …001111101001 |
3 | 221010000221202 |
4 | 302322033221 |
5 | 11404031034 |
6 | 1154013545 |
7 | 221302643 |
oct | 62721751 |
9 | 27100852 |
10 | 13345769 |
11 | 7595968 |
12 | 45772b5 |
13 | 29c3708 |
14 | 1ab5893 |
15 | 128947e |
hex | cba3e9 |
13345769 has 2 divisors, whose sum is σ = 13345770. Its totient is φ = 13345768.
The previous prime is 13345751. The next prime is 13345793. The reversal of 13345769 is 96754331.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 7155625 + 6190144 = 2675^2 + 2488^2 .
It is a cyclic number.
It is not a de Polignac number, because 13345769 - 28 = 13345513 is a prime.
It is a super-2 number, since 2×133457692 = 356219100402722, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (13345069) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6672884 + 6672885.
It is an arithmetic number, because the mean of its divisors is an integer number (6672885).
Almost surely, 213345769 is an apocalyptic number.
It is an amenable number.
13345769 is a deficient number, since it is larger than the sum of its proper divisors (1).
13345769 is an equidigital number, since it uses as much as digits as its factorization.
13345769 is an evil number, because the sum of its binary digits is even.
The product of its digits is 68040, while the sum is 38.
The square root of 13345769 is about 3653.1861436286. The cubic root of 13345769 is about 237.1999179579.
The spelling of 13345769 in words is "thirteen million, three hundred forty-five thousand, seven hundred sixty-nine".
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