Base | Representation |
---|---|
bin | 10111001100011000… |
… | …11111010010100111 |
3 | 1012010210120112010012 |
4 | 23212030133102213 |
5 | 201000200440132 |
6 | 5415332520435 |
7 | 620366661122 |
oct | 134614372247 |
9 | 35123515105 |
10 | 12451968167 |
11 | 530a8a1a91 |
12 | 24b618011b |
13 | 12359a0302 |
14 | 861a6d3b9 |
15 | 4cd29c0b2 |
hex | 2e631f4a7 |
12451968167 has 2 divisors, whose sum is σ = 12451968168. Its totient is φ = 12451968166.
The previous prime is 12451968161. The next prime is 12451968233. The reversal of 12451968167 is 76186915421.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 12451968167 - 26 = 12451968103 is a prime.
It is a super-2 number, since 2×124519681672 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12451968161) 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, 6225984083 + 6225984084.
It is an arithmetic number, because the mean of its divisors is an integer number (6225984084).
Almost surely, 212451968167 is an apocalyptic number.
12451968167 is a deficient number, since it is larger than the sum of its proper divisors (1).
12451968167 is an equidigital number, since it uses as much as digits as its factorization.
12451968167 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 725760, while the sum is 50.
The spelling of 12451968167 in words is "twelve billion, four hundred fifty-one million, nine hundred sixty-eight thousand, one hundred sixty-seven".
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