Base | Representation |
---|---|
bin | 10010101111110101… |
… | …111001010000011011 |
3 | 1220221220011110122002 |
4 | 102233311321100123 |
5 | 312211240311024 |
6 | 13125251551215 |
7 | 1311561156131 |
oct | 225765712033 |
9 | 56856143562 |
10 | 20130010139 |
11 | 859a958618 |
12 | 3a995bb50b |
13 | 1b8a5c7c05 |
14 | d8d689751 |
15 | 7cc39c6ae |
hex | 4afd7941b |
20130010139 has 2 divisors, whose sum is σ = 20130010140. Its totient is φ = 20130010138.
The previous prime is 20130010079. The next prime is 20130010141. The reversal of 20130010139 is 93101003102.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 20130010139 - 216 = 20129944603 is a prime.
Together with 20130010141, it forms a pair of twin primes.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 20130010139.
It is not a weakly prime, because it can be changed into another prime (20130013139) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065005069 + 10065005070.
It is an arithmetic number, because the mean of its divisors is an integer number (10065005070).
Almost surely, 220130010139 is an apocalyptic number.
20130010139 is a deficient number, since it is larger than the sum of its proper divisors (1).
20130010139 is an equidigital number, since it uses as much as digits as its factorization.
20130010139 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 162, while the sum is 20.
The spelling of 20130010139 in words is "twenty billion, one hundred thirty million, ten thousand, one hundred thirty-nine".
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