Base | Representation |
---|---|
bin | 1111101001011… |
… | …11101000111011 |
3 | 100011000001122121 |
4 | 13310233220323 |
5 | 232101022011 |
6 | 21005302111 |
7 | 3152516002 |
oct | 764575073 |
9 | 304001577 |
10 | 131267131 |
11 | 68107a36 |
12 | 37b64937 |
13 | 21270478 |
14 | 1360dc39 |
15 | b7cde71 |
hex | 7d2fa3b |
131267131 has 2 divisors, whose sum is σ = 131267132. Its totient is φ = 131267130.
The previous prime is 131267107. The next prime is 131267159. The reversal of 131267131 is 131762131.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 131267131 - 217 = 131136059 is a prime.
It is a super-2 number, since 2×1312671312 = 34462119361942322, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 131267096 and 131267105.
It is not a weakly prime, because it can be changed into another prime (131267161) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65633565 + 65633566.
It is an arithmetic number, because the mean of its divisors is an integer number (65633566).
Almost surely, 2131267131 is an apocalyptic number.
131267131 is a deficient number, since it is larger than the sum of its proper divisors (1).
131267131 is an equidigital number, since it uses as much as digits as its factorization.
131267131 is an evil number, because the sum of its binary digits is even.
The product of its digits is 756, while the sum is 25.
The square root of 131267131 is about 11457.1868711303. The cubic root of 131267131 is about 508.2202877769.
The spelling of 131267131 in words is "one hundred thirty-one million, two hundred sixty-seven thousand, one hundred thirty-one".
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