Base | Representation |
---|---|
bin | 110000110111… |
… | …000100001101 |
3 | 220002201220110 |
4 | 300313010031 |
5 | 11234332321 |
6 | 1134310233 |
7 | 213604311 |
oct | 60670415 |
9 | 26081813 |
10 | 12808461 |
11 | 7259206 |
12 | 4358379 |
13 | 2865c93 |
14 | 19b5b41 |
15 | 11d0176 |
hex | c3710d |
12808461 has 8 divisors (see below), whose sum is σ = 17099424. Its totient is φ = 8528240.
The previous prime is 12808387. The next prime is 12808469. The reversal of 12808461 is 16480821.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12808461 - 211 = 12806413 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12808469) 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, 715 + ... + 5111.
It is an arithmetic number, because the mean of its divisors is an integer number (2137428).
Almost surely, 212808461 is an apocalyptic number.
It is an amenable number.
12808461 is a deficient number, since it is larger than the sum of its proper divisors (4290963).
12808461 is an equidigital number, since it uses as much as digits as its factorization.
12808461 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5371.
The product of its (nonzero) digits is 3072, while the sum is 30.
The square root of 12808461 is about 3578.8910293553. The cubic root of 12808461 is about 233.9729496089.
The spelling of 12808461 in words is "twelve million, eight hundred eight thousand, four hundred sixty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.468 sec. • engine limits •