Base | Representation |
---|---|
bin | 110001100101… |
… | …000000111101 |
3 | 220110022002010 |
4 | 301211000331 |
5 | 11311343134 |
6 | 1142321433 |
7 | 215320110 |
oct | 61450075 |
9 | 26408063 |
10 | 12996669 |
11 | 7377654 |
12 | 4429279 |
13 | 290084a |
14 | 1a24577 |
15 | 121ace9 |
hex | c6503d |
12996669 has 16 divisors (see below), whose sum is σ = 20488320. Its totient is φ = 7170240.
The previous prime is 12996667. The next prime is 12996673. The reversal of 12996669 is 96669921.
It is a happy number.
It is not a de Polignac number, because 12996669 - 21 = 12996667 is a prime.
It is a super-2 number, since 2×129966692 = 337826810191122, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12996661) 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 15 ways as a sum of consecutive naturals, for example, 10062 + ... + 11279.
It is an arithmetic number, because the mean of its divisors is an integer number (1280520).
Almost surely, 212996669 is an apocalyptic number.
It is an amenable number.
12996669 is a deficient number, since it is larger than the sum of its proper divisors (7491651).
12996669 is a wasteful number, since it uses less digits than its factorization.
12996669 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21380.
The product of its digits is 314928, while the sum is 48.
The square root of 12996669 is about 3605.0893192818. The cubic root of 12996669 is about 235.1133842467.
The spelling of 12996669 in words is "twelve million, nine hundred ninety-six thousand, six hundred sixty-nine".
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