Base | Representation |
---|---|
bin | 10110100011010111… |
… | …10011000011010110 |
3 | 1011020211001201021110 |
4 | 23101223303003112 |
5 | 144244102312123 |
6 | 5321241155450 |
7 | 606021030000 |
oct | 132153630326 |
9 | 34224051243 |
10 | 12107854038 |
11 | 5153627a45 |
12 | 241aa8bb86 |
13 | 11ac5c8197 |
14 | 82c095370 |
15 | 4ace77493 |
hex | 2d1af30d6 |
12107854038 has 40 divisors (see below), whose sum is σ = 28250012088. Its totient is φ = 3459382752.
The previous prime is 12107854037. The next prime is 12107854039. The reversal of 12107854038 is 83045870121.
It is an interprime number because it is at equal distance from previous prime (12107854037) and next prime (12107854039).
It is a junction number, because it is equal to n+sod(n) for n = 12107853987 and 12107854005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12107854037) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 405831 + ... + 434642.
Almost surely, 212107854038 is an apocalyptic number.
12107854038 is an abundant number, since it is smaller than the sum of its proper divisors (16142158050).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12107854038 is an frugal number, since it uses more digits than its factorization.
12107854038 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 840506 (or 840485 counting only the distinct ones).
The product of its (nonzero) digits is 53760, while the sum is 39.
The spelling of 12107854038 in words is "twelve billion, one hundred seven million, eight hundred fifty-four thousand, thirty-eight".
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