Base | Representation |
---|---|
bin | 1000000010101011001… |
… | …1001000100001101011 |
3 | 111012121101202211010222 |
4 | 2000222303020201223 |
5 | 4230421143011221 |
6 | 143245104000255 |
7 | 12660442062554 |
oct | 2005263104153 |
9 | 435541684128 |
10 | 138157000811 |
11 | 53657030615 |
12 | 2293860008b |
13 | 10049ac822b |
14 | 698896132b |
15 | 38d90229ab |
hex | 202acc886b |
138157000811 has 2 divisors, whose sum is σ = 138157000812. Its totient is φ = 138157000810.
The previous prime is 138157000789. The next prime is 138157000831. The reversal of 138157000811 is 118000751831.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 138157000811 - 230 = 137083258987 is a prime.
It is not a weakly prime, because it can be changed into another prime (138157000831) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69078500405 + 69078500406.
It is an arithmetic number, because the mean of its divisors is an integer number (69078500406).
Almost surely, 2138157000811 is an apocalyptic number.
138157000811 is a deficient number, since it is larger than the sum of its proper divisors (1).
138157000811 is an equidigital number, since it uses as much as digits as its factorization.
138157000811 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 6720, while the sum is 35.
The spelling of 138157000811 in words is "one hundred thirty-eight billion, one hundred fifty-seven million, eight hundred eleven", and thus it is an aban number.
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