Base | Representation |
---|---|
bin | 10110100011011111… |
… | …00100100001100100 |
3 | 1011020212220222000200 |
4 | 23101233210201210 |
5 | 144244330434413 |
6 | 5321314310500 |
7 | 606032316405 |
oct | 132157444144 |
9 | 34225828020 |
10 | 12108843108 |
11 | 515414305a |
12 | 241b288430 |
13 | 11ac88342b |
14 | 82c2719ac |
15 | 4ad0c0573 |
hex | 2d1be4864 |
12108843108 has 72 divisors (see below), whose sum is σ = 32607775200. Its totient is φ = 3777757056.
The previous prime is 12108843091. The next prime is 12108843119. The reversal of 12108843108 is 80134880121.
12108843108 is a `hidden beast` number, since 1 + 210 + 8 + 8 + 431 + 0 + 8 = 666.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49873 + ... + 163416.
Almost surely, 212108843108 is an apocalyptic number.
12108843108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
12108843108 is an abundant number, since it is smaller than the sum of its proper divisors (20498932092).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12108843108 is a wasteful number, since it uses less digits than its factorization.
12108843108 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 213401 (or 213396 counting only the distinct ones).
The product of its (nonzero) digits is 12288, while the sum is 36.
The spelling of 12108843108 in words is "twelve billion, one hundred eight million, eight hundred forty-three thousand, one hundred eight".
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