Base | Representation |
---|---|
bin | 110000011110… |
… | …100000111001 |
3 | 212220121221212 |
4 | 300132200321 |
5 | 11223123042 |
6 | 1132212505 |
7 | 213005156 |
oct | 60364071 |
9 | 25817855 |
10 | 12707897 |
11 | 719a6a4 |
12 | 430a135 |
13 | 282c287 |
14 | 198b22d |
15 | 11b0482 |
hex | c1e839 |
12707897 has 8 divisors (see below), whose sum is σ = 12872640. Its totient is φ = 12544560.
The previous prime is 12707843. The next prime is 12707899. The reversal of 12707897 is 79870721.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12707897 - 218 = 12445753 is a prime.
It is a super-2 number, since 2×127078972 = 322981292325218, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12707899) 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 7 ways as a sum of consecutive naturals, for example, 48188 + ... + 48450.
It is an arithmetic number, because the mean of its divisors is an integer number (1609080).
Almost surely, 212707897 is an apocalyptic number.
It is an amenable number.
12707897 is a deficient number, since it is larger than the sum of its proper divisors (164743).
12707897 is a wasteful number, since it uses less digits than its factorization.
12707897 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 703.
The product of its (nonzero) digits is 49392, while the sum is 41.
The square root of 12707897 is about 3564.8137398748. The cubic root of 12707897 is about 233.3590037517.
The spelling of 12707897 in words is "twelve million, seven hundred seven thousand, eight hundred ninety-seven".
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