Base | Representation |
---|---|
bin | 110001001101… |
… | …101110100011 |
3 | 220021110020022 |
4 | 301031232203 |
5 | 11300320113 |
6 | 1140304055 |
7 | 214442033 |
oct | 61155643 |
9 | 26243208 |
10 | 12901283 |
11 | 7311a1a |
12 | 43a202b |
13 | 28992c5 |
14 | 19db8c3 |
15 | 11ec908 |
hex | c4dba3 |
12901283 has 4 divisors (see below), whose sum is σ = 13660200. Its totient is φ = 12142368.
The previous prime is 12901279. The next prime is 12901297. The reversal of 12901283 is 38210921.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 12901283 - 22 = 12901279 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12901223) 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 3 ways as a sum of consecutive naturals, for example, 379433 + ... + 379466.
It is an arithmetic number, because the mean of its divisors is an integer number (3415050).
Almost surely, 212901283 is an apocalyptic number.
12901283 is a deficient number, since it is larger than the sum of its proper divisors (758917).
12901283 is an equidigital number, since it uses as much as digits as its factorization.
12901283 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 758916.
The product of its (nonzero) digits is 864, while the sum is 26.
The square root of 12901283 is about 3591.8356031422. The cubic root of 12901283 is about 234.5367848423.
The spelling of 12901283 in words is "twelve million, nine hundred one thousand, two hundred eighty-three".
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