Base | Representation |
---|---|
bin | 110001001000… |
… | …110101001101 |
3 | 220020102201120 |
4 | 301020311031 |
5 | 11244144404 |
6 | 1140031153 |
7 | 214326414 |
oct | 61106515 |
9 | 26212646 |
10 | 12881229 |
11 | 72a8949 |
12 | 43924b9 |
13 | 289013a |
14 | 19d447b |
15 | 11e69d9 |
hex | c48d4d |
12881229 has 8 divisors (see below), whose sum is σ = 17310720. Its totient is φ = 8519616.
The previous prime is 12881207. The next prime is 12881251. The reversal of 12881229 is 92218821.
It is an interprime number because it is at equal distance from previous prime (12881207) and next prime (12881251).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12881229 - 215 = 12848461 is a prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 12881229.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12881299) 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, 16524 + ... + 17285.
It is an arithmetic number, because the mean of its divisors is an integer number (2163840).
Almost surely, 212881229 is an apocalyptic number.
It is an amenable number.
12881229 is a deficient number, since it is larger than the sum of its proper divisors (4429491).
12881229 is a wasteful number, since it uses less digits than its factorization.
12881229 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33939.
The product of its digits is 4608, while the sum is 33.
The square root of 12881229 is about 3589.0429086318. The cubic root of 12881229 is about 234.4151990071.
The spelling of 12881229 in words is "twelve million, eight hundred eighty-one thousand, two hundred twenty-nine".
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