Base | Representation |
---|---|
bin | 110001001010… |
… | …001110111010 |
3 | 220020201121012 |
4 | 301022032322 |
5 | 11244340340 |
6 | 1140113522 |
7 | 214352225 |
oct | 61121672 |
9 | 26221535 |
10 | 12886970 |
11 | 7302198 |
12 | 43958a2 |
13 | 2892935 |
14 | 19d65bc |
15 | 11e8565 |
hex | c4a3ba |
12886970 has 8 divisors (see below), whose sum is σ = 23196564. Its totient is φ = 5154784.
The previous prime is 12886967. The next prime is 12886987. The reversal of 12886970 is 7968821.
12886970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 10543009 + 2343961 = 3247^2 + 1531^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-6 number, since 6×128869706 (a number of 44 digits) contains 666666 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644339 + ... + 644358.
Almost surely, 212886970 is an apocalyptic number.
12886970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12886970 is a deficient number, since it is larger than the sum of its proper divisors (10309594).
12886970 is a wasteful number, since it uses less digits than its factorization.
12886970 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1288704.
The product of its (nonzero) digits is 48384, while the sum is 41.
The square root of 12886970 is about 3589.8426149345. The cubic root of 12886970 is about 234.4500191259.
The spelling of 12886970 in words is "twelve million, eight hundred eighty-six thousand, nine hundred seventy".
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