Base | Representation |
---|---|
bin | 1111101000101… |
… | …11101001100011 |
3 | 100010211001212012 |
4 | 13310113221203 |
5 | 232034400432 |
6 | 21003223135 |
7 | 3151626344 |
oct | 764275143 |
9 | 303731765 |
10 | 131168867 |
11 | 68050125 |
12 | 37b17aab |
13 | 2123781b |
14 | 135c60cb |
15 | b7aecb2 |
hex | 7d17a63 |
131168867 has 2 divisors, whose sum is σ = 131168868. Its totient is φ = 131168866.
The previous prime is 131168861. The next prime is 131168893. The reversal of 131168867 is 768861131.
It is a weak prime.
It is an emirp because it is prime and its reverse (768861131) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 131168867 - 26 = 131168803 is a prime.
It is not a weakly prime, because it can be changed into another prime (131168861) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65584433 + 65584434.
It is an arithmetic number, because the mean of its divisors is an integer number (65584434).
Almost surely, 2131168867 is an apocalyptic number.
131168867 is a deficient number, since it is larger than the sum of its proper divisors (1).
131168867 is an equidigital number, since it uses as much as digits as its factorization.
131168867 is an evil number, because the sum of its binary digits is even.
The product of its digits is 48384, while the sum is 41.
The square root of 131168867 is about 11452.8977555901. The cubic root of 131168867 is about 508.0934415399.
The spelling of 131168867 in words is "one hundred thirty-one million, one hundred sixty-eight thousand, eight hundred sixty-seven".
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