Base | Representation |
---|---|
bin | 1111101001101… |
… | …01011100101111 |
3 | 100011001021021221 |
4 | 13310311130233 |
5 | 232102302202 |
6 | 21010004211 |
7 | 3152645245 |
oct | 764653457 |
9 | 304037257 |
10 | 131290927 |
11 | 681238a9 |
12 | 37b76667 |
13 | 2127b251 |
14 | 13618795 |
15 | b7d6037 |
hex | 7d3572f |
131290927 has 2 divisors, whose sum is σ = 131290928. Its totient is φ = 131290926.
The previous prime is 131290919. The next prime is 131290933. The reversal of 131290927 is 729092131.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 131290927 - 23 = 131290919 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 131290892 and 131290901.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131290987) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65645463 + 65645464.
It is an arithmetic number, because the mean of its divisors is an integer number (65645464).
Almost surely, 2131290927 is an apocalyptic number.
131290927 is a deficient number, since it is larger than the sum of its proper divisors (1).
131290927 is an equidigital number, since it uses as much as digits as its factorization.
131290927 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 6804, while the sum is 34.
The square root of 131290927 is about 11458.2252988846. The cubic root of 131290927 is about 508.2509958432.
The spelling of 131290927 in words is "one hundred thirty-one million, two hundred ninety thousand, nine hundred twenty-seven".
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