Base | Representation |
---|---|
bin | 10111111111001100… |
… | …00001100111111111 |
3 | 1020020111101220012222 |
4 | 23333212001213333 |
5 | 202333242432144 |
6 | 5525514115555 |
7 | 634062661025 |
oct | 137746014777 |
9 | 36214356188 |
10 | 12878092799 |
11 | 5509390800 |
12 | 25b4a1bbbb |
13 | 12a305a970 |
14 | 8a24b4715 |
15 | 5058c12ee |
hex | 2ff9819ff |
12878092799 has 48 divisors (see below), whose sum is σ = 15680661696. Its totient is φ = 10501370880.
The previous prime is 12878092789. The next prime is 12878092811. The reversal of 12878092799 is 99729087821.
It is a happy number.
It is a de Polignac number, because none of the positive numbers 2k-12878092799 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12878092789) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9420014 + ... + 9421380.
It is an arithmetic number, because the mean of its divisors is an integer number (326680452).
Almost surely, 212878092799 is an apocalyptic number.
12878092799 is a deficient number, since it is larger than the sum of its proper divisors (2802568897).
12878092799 is a wasteful number, since it uses less digits than its factorization.
12878092799 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1568 (or 1557 counting only the distinct ones).
The product of its (nonzero) digits is 9144576, while the sum is 62.
The spelling of 12878092799 in words is "twelve billion, eight hundred seventy-eight million, ninety-two thousand, seven hundred ninety-nine".
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