Base | Representation |
---|---|
bin | 1111101000011… |
… | …00001011011011 |
3 | 100010201200102001 |
4 | 13310030023123 |
5 | 232031400013 |
6 | 21002221431 |
7 | 3151342354 |
oct | 764141333 |
9 | 303650361 |
10 | 131121883 |
11 | 680188a2 |
12 | 37ab4877 |
13 | 2121c319 |
14 | 135b2d2b |
15 | b7a0ddd |
hex | 7d0c2db |
131121883 has 2 divisors, whose sum is σ = 131121884. Its totient is φ = 131121882.
The previous prime is 131121871. The next prime is 131121929. The reversal of 131121883 is 388121131.
It is a weak prime.
It is an emirp because it is prime and its reverse (388121131) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-131121883 is a prime.
It is not a weakly prime, because it can be changed into another prime (131121803) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65560941 + 65560942.
It is an arithmetic number, because the mean of its divisors is an integer number (65560942).
Almost surely, 2131121883 is an apocalyptic number.
131121883 is a deficient number, since it is larger than the sum of its proper divisors (1).
131121883 is an equidigital number, since it uses as much as digits as its factorization.
131121883 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1152, while the sum is 28.
The square root of 131121883 is about 11450.8463879313. The cubic root of 131121883 is about 508.0327688267.
The spelling of 131121883 in words is "one hundred thirty-one million, one hundred twenty-one thousand, eight hundred eighty-three".
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