Base | Representation |
---|---|
bin | 10111110011101111… |
… | …01110000100101101 |
3 | 1012222210201022222102 |
4 | 23321313232010231 |
5 | 202134202134023 |
6 | 5512204024445 |
7 | 631515533261 |
oct | 137167560455 |
9 | 35883638872 |
10 | 12782068013 |
11 | 546a164980 |
12 | 2588832125 |
13 | 12891a9670 |
14 | 89383a0a1 |
15 | 4ec254628 |
hex | 2f9dee12d |
12782068013 has 16 divisors (see below), whose sum is σ = 15081183936. Its totient is φ = 10680147840.
The previous prime is 12782067983. The next prime is 12782068021. The reversal of 12782068013 is 31086028721.
It is a cyclic number.
It is not a de Polignac number, because 12782068013 - 216 = 12782002477 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12782068513) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158495 + ... + 225132.
It is an arithmetic number, because the mean of its divisors is an integer number (942573996).
Almost surely, 212782068013 is an apocalyptic number.
12782068013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
12782068013 is a deficient number, since it is larger than the sum of its proper divisors (2299115923).
12782068013 is a wasteful number, since it uses less digits than its factorization.
12782068013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 383884.
The product of its (nonzero) digits is 32256, while the sum is 38.
The spelling of 12782068013 in words is "twelve billion, seven hundred eighty-two million, sixty-eight thousand, thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •