Base | Representation |
---|---|
bin | 1111101001100… |
… | …01011110110111 |
3 | 100011000110000011 |
4 | 13310301132313 |
5 | 232101242204 |
6 | 21005401051 |
7 | 3152550004 |
oct | 764613667 |
9 | 304013004 |
10 | 131274679 |
11 | 68112678 |
12 | 37b69187 |
13 | 21273a33 |
14 | 136128ab |
15 | b7d1304 |
hex | 7d317b7 |
131274679 has 2 divisors, whose sum is σ = 131274680. Its totient is φ = 131274678.
The previous prime is 131274653. The next prime is 131274683. The reversal of 131274679 is 976472131.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 131274679 - 27 = 131274551 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131214679) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65637339 + 65637340.
It is an arithmetic number, because the mean of its divisors is an integer number (65637340).
Almost surely, 2131274679 is an apocalyptic number.
131274679 is a deficient number, since it is larger than the sum of its proper divisors (1).
131274679 is an equidigital number, since it uses as much as digits as its factorization.
131274679 is an evil number, because the sum of its binary digits is even.
The product of its digits is 63504, while the sum is 40.
The square root of 131274679 is about 11457.5162666260. The cubic root of 131274679 is about 508.2300286597.
The spelling of 131274679 in words is "one hundred thirty-one million, two hundred seventy-four thousand, six hundred seventy-nine".
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