Base | Representation |
---|---|
bin | 10111001001010010… |
… | …10110101011111101 |
3 | 1012001222200012222021 |
4 | 23210221112223331 |
5 | 200422022340134 |
6 | 5413003520141 |
7 | 616633043614 |
oct | 134451265375 |
9 | 35058605867 |
10 | 12425980669 |
11 | 52a7162213 |
12 | 24a9529051 |
13 | 12304a17ab |
14 | 85c42687b |
15 | 4cad670b4 |
hex | 2e4a56afd |
12425980669 has 2 divisors, whose sum is σ = 12425980670. Its totient is φ = 12425980668.
The previous prime is 12425980657. The next prime is 12425980673. The reversal of 12425980669 is 96608952421.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 9406478169 + 3019502500 = 96987^2 + 54950^2 .
It is a cyclic number.
It is not a de Polignac number, because 12425980669 - 29 = 12425980157 is a prime.
It is a super-2 number, since 2×124259806692 (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 (12425981669) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6212990334 + 6212990335.
It is an arithmetic number, because the mean of its divisors is an integer number (6212990335).
Almost surely, 212425980669 is an apocalyptic number.
It is an amenable number.
12425980669 is a deficient number, since it is larger than the sum of its proper divisors (1).
12425980669 is an equidigital number, since it uses as much as digits as its factorization.
12425980669 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1866240, while the sum is 52.
The spelling of 12425980669 in words is "twelve billion, four hundred twenty-five million, nine hundred eighty thousand, six hundred sixty-nine".
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