Base | Representation |
---|---|
bin | 1001111011100100110100… |
… | …01110110110101111110010 |
3 | 2212022201012210112201022100 |
4 | 10331302122032312233302 |
5 | 10330244114014142021 |
6 | 114240155311521230 |
7 | 4412520662310015 |
oct | 475623216665762 |
9 | 85281183481270 |
10 | 21838201318386 |
11 | 6a5a590361632 |
12 | 2548481529216 |
13 | c25444a6053b |
14 | 556d9038537c |
15 | 27d0dd52d626 |
hex | 13dc9a3b6bf2 |
21838201318386 has 24 divisors (see below), whose sum is σ = 48470154147324. Its totient is φ = 7101854087040.
The previous prime is 21838201318363. The next prime is 21838201318429. The reversal of 21838201318386 is 68381310283812.
21838201318386 is a `hidden beast` number, since 2 + 1 + 8 + 382 + 0 + 1 + 3 + 183 + 86 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 16889066956161 + 4949134362225 = 4109631^2 + 2224665^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14795528611 + ... + 14795530086.
Almost surely, 221838201318386 is an apocalyptic number.
21838201318386 is an abundant number, since it is smaller than the sum of its proper divisors (26631952828938).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21838201318386 is a wasteful number, since it uses less digits than its factorization.
21838201318386 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29591058746 (or 29591058743 counting only the distinct ones).
The product of its (nonzero) digits is 2654208, while the sum is 54.
The spelling of 21838201318386 in words is "twenty-one trillion, eight hundred thirty-eight billion, two hundred one million, three hundred eighteen thousand, three hundred eighty-six".
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