Base | Representation |
---|---|
bin | 110001011110… |
… | …001100001111 |
3 | 220101212201221 |
4 | 301132030033 |
5 | 11304444334 |
6 | 1141544211 |
7 | 215142451 |
oct | 61361417 |
9 | 26355657 |
10 | 12968719 |
11 | 7358655 |
12 | 4415067 |
13 | 28c0bca |
14 | 1a182d1 |
15 | 12128b4 |
hex | c5e30f |
12968719 has 8 divisors (see below), whose sum is σ = 13224960. Its totient is φ = 12714936.
The previous prime is 12968699. The next prime is 12968743. The reversal of 12968719 is 91786921.
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 12968719 - 25 = 12968687 is a prime.
It is a super-2 number, since 2×129687192 = 336375345001922, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12968749) 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, 12702 + ... + 13684.
It is an arithmetic number, because the mean of its divisors is an integer number (1653120).
Almost surely, 212968719 is an apocalyptic number.
12968719 is a deficient number, since it is larger than the sum of its proper divisors (256241).
12968719 is an equidigital number, since it uses as much as digits as its factorization.
12968719 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1229.
The product of its digits is 54432, while the sum is 43.
The square root of 12968719 is about 3601.2107686166. The cubic root of 12968719 is about 234.9447221726.
The spelling of 12968719 in words is "twelve million, nine hundred sixty-eight thousand, seven hundred nineteen".
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