Base | Representation |
---|---|
bin | 110001011101… |
… | …100001010001 |
3 | 220101201222002 |
4 | 301131201101 |
5 | 11304402334 |
6 | 1141523345 |
7 | 215131442 |
oct | 61354121 |
9 | 26351862 |
10 | 12965969 |
11 | 7356585 |
12 | 4413555 |
13 | 28bc893 |
14 | 1a172c9 |
15 | 1211b7e |
hex | c5d851 |
12965969 has 4 divisors (see below), whose sum is σ = 13000560. Its totient is φ = 12931380.
The previous prime is 12965957. The next prime is 12965971. The reversal of 12965969 is 96956921.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 12965969 - 220 = 11917393 is a prime.
It is a super-2 number, since 2×129659692 = 336232704217922, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12965369) 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 in 3 ways as a sum of consecutive naturals, for example, 16727 + ... + 17484.
It is an arithmetic number, because the mean of its divisors is an integer number (3250140).
Almost surely, 212965969 is an apocalyptic number.
It is an amenable number.
12965969 is a deficient number, since it is larger than the sum of its proper divisors (34591).
12965969 is an equidigital number, since it uses as much as digits as its factorization.
12965969 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34590.
The product of its digits is 262440, while the sum is 47.
The square root of 12965969 is about 3600.8289323432. The cubic root of 12965969 is about 234.9281144244.
The spelling of 12965969 in words is "twelve million, nine hundred sixty-five thousand, nine hundred sixty-nine".
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