Base | Representation |
---|---|
bin | 1011111011110100110011… |
… | …0100011110110001011111 |
3 | 1201110111020120212201221202 |
4 | 2332331030310132301133 |
5 | 3204444200430241411 |
6 | 43524204223350115 |
7 | 2523030435614465 |
oct | 276751464366137 |
9 | 51414216781852 |
10 | 13122413915231 |
11 | 41aa203611085 |
12 | 157b265a5233b |
13 | 742590cc109a |
14 | 3351b1bb0835 |
15 | 17b52651183b |
hex | bef4cd1ec5f |
13122413915231 has 2 divisors, whose sum is σ = 13122413915232. Its totient is φ = 13122413915230.
The previous prime is 13122413915213. The next prime is 13122413915263. The reversal of 13122413915231 is 13251931422131.
Together with previous prime (13122413915213) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13122413915231 is a prime.
It is a super-2 number, since 2×131224139152312 (a number of 27 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13122413515231) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561206957615 + 6561206957616.
It is an arithmetic number, because the mean of its divisors is an integer number (6561206957616).
Almost surely, 213122413915231 is an apocalyptic number.
13122413915231 is a deficient number, since it is larger than the sum of its proper divisors (1).
13122413915231 is an equidigital number, since it uses as much as digits as its factorization.
13122413915231 is an evil number, because the sum of its binary digits is even.
The product of its digits is 38880, while the sum is 38.
The spelling of 13122413915231 in words is "thirteen trillion, one hundred twenty-two billion, four hundred thirteen million, nine hundred fifteen thousand, two hundred thirty-one".
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