Base | Representation |
---|---|
bin | 10111001001001111… |
… | …00100110010111001 |
3 | 1012001221210112001111 |
4 | 23210213210302321 |
5 | 200421412423134 |
6 | 5412545520321 |
7 | 616626061555 |
oct | 134447446271 |
9 | 35057715044 |
10 | 12425514169 |
11 | 52a6973782 |
12 | 24a93430a1 |
13 | 123036a363 |
14 | 85c344865 |
15 | 4cacc3c64 |
hex | 2e49e4cb9 |
12425514169 has 2 divisors, whose sum is σ = 12425514170. Its totient is φ = 12425514168.
The previous prime is 12425514109. The next prime is 12425514197. The reversal of 12425514169 is 96141552421.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 11916560569 + 508953600 = 109163^2 + 22560^2 .
It is a cyclic number.
It is not a de Polignac number, because 12425514169 - 229 = 11888643257 is a prime.
It is a super-2 number, since 2×124255141692 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (12425514109) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6212757084 + 6212757085.
It is an arithmetic number, because the mean of its divisors is an integer number (6212757085).
Almost surely, 212425514169 is an apocalyptic number.
It is an amenable number.
12425514169 is a deficient number, since it is larger than the sum of its proper divisors (1).
12425514169 is an equidigital number, since it uses as much as digits as its factorization.
12425514169 is an evil number, because the sum of its binary digits is even.
The product of its digits is 86400, while the sum is 40.
The spelling of 12425514169 in words is "twelve billion, four hundred twenty-five million, five hundred fourteen thousand, one hundred sixty-nine".
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