Base | Representation |
---|---|
bin | 10110110101001010… |
… | …00110000001111000 |
3 | 1011122012212202212102 |
4 | 23122211012001320 |
5 | 200100303413304 |
6 | 5344132002532 |
7 | 612512363144 |
oct | 133245060170 |
9 | 34565782772 |
10 | 12257091704 |
11 | 521a899460 |
12 | 2460a60448 |
13 | 12044bb0b0 |
14 | 843c22224 |
15 | 4bb105d1e |
hex | 2da946078 |
12257091704 has 64 divisors (see below), whose sum is σ = 27080857440. Its totient is φ = 5127413760.
The previous prime is 12257091701. The next prime is 12257091709. The reversal of 12257091704 is 40719075221.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12257091701) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369632 + ... + 401424.
Almost surely, 212257091704 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12257091704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13540428720).
12257091704 is an abundant number, since it is smaller than the sum of its proper divisors (14823765736).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12257091704 is a wasteful number, since it uses less digits than its factorization.
12257091704 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32160 (or 32156 counting only the distinct ones).
The product of its (nonzero) digits is 35280, while the sum is 38.
The spelling of 12257091704 in words is "twelve billion, two hundred fifty-seven million, ninety-one thousand, seven hundred four".
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