Base | Representation |
---|---|
bin | 110001000011… |
… | …111100101110 |
3 | 220012102021212 |
4 | 301003330232 |
5 | 11243024410 |
6 | 1135354422 |
7 | 214214204 |
oct | 61037456 |
9 | 26172255 |
10 | 12861230 |
11 | 7294918 |
12 | 4382a12 |
13 | 2883cc5 |
14 | 19cb074 |
15 | 11e0b05 |
hex | c43f2e |
12861230 has 16 divisors (see below), whose sum is σ = 23390640. Its totient is φ = 5091072.
The previous prime is 12861229. The next prime is 12861241. The reversal of 12861230 is 3216821.
It is a super-2 number, since 2×128612302 = 330822474225800, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 12861196 and 12861205.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5660 + ... + 7599.
It is an arithmetic number, because the mean of its divisors is an integer number (1461915).
Almost surely, 212861230 is an apocalyptic number.
12861230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12861230 is a deficient number, since it is larger than the sum of its proper divisors (10529410).
12861230 is a wasteful number, since it uses less digits than its factorization.
12861230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13363.
The product of its (nonzero) digits is 576, while the sum is 23.
The square root of 12861230 is about 3586.2557075591. The cubic root of 12861230 is about 234.2938208931.
The spelling of 12861230 in words is "twelve million, eight hundred sixty-one thousand, two hundred thirty".
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