Base | Representation |
---|---|
bin | 10110100111001010… |
… | …10100011110101011 |
3 | 1011100001000011221221 |
4 | 23103211110132223 |
5 | 144330231213004 |
6 | 5324340042511 |
7 | 606555556426 |
oct | 132345243653 |
9 | 34301004857 |
10 | 12139710379 |
11 | 516a6060a5 |
12 | 2429693437 |
13 | 11b60a00a4 |
14 | 8323c89bd |
15 | 4b0b6b354 |
hex | 2d39547ab |
12139710379 has 2 divisors, whose sum is σ = 12139710380. Its totient is φ = 12139710378.
The previous prime is 12139710371. The next prime is 12139710403. The reversal of 12139710379 is 97301793121.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 12139710379 - 23 = 12139710371 is a prime.
It is not a weakly prime, because it can be changed into another prime (12139710371) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6069855189 + 6069855190.
It is an arithmetic number, because the mean of its divisors is an integer number (6069855190).
Almost surely, 212139710379 is an apocalyptic number.
12139710379 is a deficient number, since it is larger than the sum of its proper divisors (1).
12139710379 is an equidigital number, since it uses as much as digits as its factorization.
12139710379 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 71442, while the sum is 43.
The spelling of 12139710379 in words is "twelve billion, one hundred thirty-nine million, seven hundred ten thousand, three hundred seventy-nine".
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