Base | Representation |
---|---|
bin | 10110111001000110… |
… | …01000111101100101 |
3 | 1011201112001111012000 |
4 | 23130203020331211 |
5 | 200132233240421 |
6 | 5351312115513 |
7 | 613363262025 |
oct | 133443107545 |
9 | 34645044160 |
10 | 12290133861 |
11 | 5237507525 |
12 | 246bb35b99 |
13 | 120b2b9975 |
14 | 848383a85 |
15 | 4bde81226 |
hex | 2dc8c8f65 |
12290133861 has 48 divisors (see below), whose sum is σ = 18895916160. Its totient is φ = 7894584000.
The previous prime is 12290133841. The next prime is 12290133871. The reversal of 12290133861 is 16833109221.
It is not a de Polignac number, because 12290133861 - 25 = 12290133829 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12290133841) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6823161 + ... + 6824961.
It is an arithmetic number, because the mean of its divisors is an integer number (393664920).
Almost surely, 212290133861 is an apocalyptic number.
It is an amenable number.
12290133861 is a deficient number, since it is larger than the sum of its proper divisors (6605782299).
12290133861 is a wasteful number, since it uses less digits than its factorization.
12290133861 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2135 (or 2098 counting only the distinct ones).
The product of its (nonzero) digits is 15552, while the sum is 36.
The spelling of 12290133861 in words is "twelve billion, two hundred ninety million, one hundred thirty-three thousand, eight hundred sixty-one".
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