Base | Representation |
---|---|
bin | 10110101000101111… |
… | …11110110111101011 |
3 | 1011100221222220211121 |
4 | 23110113332313223 |
5 | 144342131204321 |
6 | 5325532440111 |
7 | 610106502154 |
oct | 132427766753 |
9 | 34327886747 |
10 | 12152991211 |
11 | 5177057199 |
12 | 2432019037 |
13 | 11b8a7007a |
14 | 83408492b |
15 | 4b1de1441 |
hex | 2d45fedeb |
12152991211 has 2 divisors, whose sum is σ = 12152991212. Its totient is φ = 12152991210.
The previous prime is 12152991157. The next prime is 12152991233. The reversal of 12152991211 is 11219925121.
It is a strong prime.
It is an emirp because it is prime and its reverse (11219925121) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12152991211 - 231 = 10005507563 is a prime.
It is not a weakly prime, because it can be changed into another prime (12152991241) 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 as a sum of consecutive naturals, namely, 6076495605 + 6076495606.
It is an arithmetic number, because the mean of its divisors is an integer number (6076495606).
Almost surely, 212152991211 is an apocalyptic number.
12152991211 is a deficient number, since it is larger than the sum of its proper divisors (1).
12152991211 is an equidigital number, since it uses as much as digits as its factorization.
12152991211 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 3240, while the sum is 34.
The spelling of 12152991211 in words is "twelve billion, one hundred fifty-two million, nine hundred ninety-one thousand, two hundred eleven".
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