Base | Representation |
---|---|
bin | 110001001000… |
… | …010101111111 |
3 | 220020022222120 |
4 | 301020111333 |
5 | 11244113411 |
6 | 1140014023 |
7 | 214320531 |
oct | 61102577 |
9 | 26208876 |
10 | 12879231 |
11 | 72a73a2 |
12 | 4391313 |
13 | 288c261 |
14 | 19d3851 |
15 | 11e6106 |
hex | c4857f |
12879231 has 8 divisors (see below), whose sum is σ = 17571840. Its totient is φ = 8386392.
The previous prime is 12879221. The next prime is 12879239. The reversal of 12879231 is 13297821.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12879231 - 25 = 12879199 is a prime.
It is a super-2 number, since 2×128792312 = 331749182302722, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 12879192 and 12879201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12879239) by changing a digit.
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, 49791 + ... + 50048.
It is an arithmetic number, because the mean of its divisors is an integer number (2196480).
Almost surely, 212879231 is an apocalyptic number.
12879231 is a deficient number, since it is larger than the sum of its proper divisors (4692609).
12879231 is an equidigital number, since it uses as much as digits as its factorization.
12879231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 99885.
The product of its digits is 6048, while the sum is 33.
The square root of 12879231 is about 3588.7645506497. The cubic root of 12879231 is about 234.4030783783.
The spelling of 12879231 in words is "twelve million, eight hundred seventy-nine thousand, two hundred thirty-one".
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