Base | Representation |
---|---|
bin | 10111010000111110… |
… | …01100101011100100 |
3 | 1012020110221102212102 |
4 | 23220133030223210 |
5 | 201040022131413 |
6 | 5423225111232 |
7 | 621344610245 |
oct | 135037145344 |
9 | 35213842772 |
10 | 12490427108 |
11 | 532a57a835 |
12 | 2507028518 |
13 | 1240947593 |
14 | 866c00ccc |
15 | 4d1847458 |
hex | 2e87ccae4 |
12490427108 has 12 divisors (see below), whose sum is σ = 22270667580. Its totient is φ = 6127379232.
The previous prime is 12490427099. The next prime is 12490427111. The reversal of 12490427108 is 80172409421.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 11276740864 + 1213686244 = 106192^2 + 34838^2 .
It is a super-2 number, since 2×124904271082 (a number of 21 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29458343 + ... + 29458766.
It is an arithmetic number, because the mean of its divisors is an integer number (1855888965).
Almost surely, 212490427108 is an apocalyptic number.
It is an amenable number.
12490427108 is a deficient number, since it is larger than the sum of its proper divisors (9780240472).
12490427108 is a wasteful number, since it uses less digits than its factorization.
12490427108 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 58917166 (or 58917164 counting only the distinct ones).
The product of its (nonzero) digits is 32256, while the sum is 38.
The spelling of 12490427108 in words is "twelve billion, four hundred ninety million, four hundred twenty-seven thousand, one hundred eight".
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