Base | Representation |
---|---|
bin | 1111100111111… |
… | …10011111000001 |
3 | 100010121211110122 |
4 | 13303332133001 |
5 | 232023101133 |
6 | 21001110025 |
7 | 3151020005 |
oct | 763763701 |
9 | 303554418 |
10 | 131065793 |
11 | 67a8a741 |
12 | 37a88315 |
13 | 211cc931 |
14 | 1359a705 |
15 | b78e498 |
hex | 7cfe7c1 |
131065793 has 2 divisors, whose sum is σ = 131065794. Its totient is φ = 131065792.
The previous prime is 131065789. The next prime is 131065817. The reversal of 131065793 is 397560131.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 105431824 + 25633969 = 10268^2 + 5063^2 .
It is a cyclic number.
It is not a de Polignac number, because 131065793 - 22 = 131065789 is a prime.
It is not a weakly prime, because it can be changed into another prime (131065783) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65532896 + 65532897.
It is an arithmetic number, because the mean of its divisors is an integer number (65532897).
Almost surely, 2131065793 is an apocalyptic number.
It is an amenable number.
131065793 is a deficient number, since it is larger than the sum of its proper divisors (1).
131065793 is an equidigital number, since it uses as much as digits as its factorization.
131065793 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 17010, while the sum is 35.
The square root of 131065793 is about 11448.3969620205. The cubic root of 131065793 is about 507.9603181127.
The spelling of 131065793 in words is "one hundred thirty-one million, sixty-five thousand, seven hundred ninety-three".
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