Base | Representation |
---|---|
bin | 111101010110100100… |
… | …0001010110110000011 |
3 | 110121002010200022101222 |
4 | 1322231020022312003 |
5 | 4124312411300234 |
6 | 140305441145255 |
7 | 12342656165444 |
oct | 1725510126603 |
9 | 417063608358 |
10 | 131753618819 |
11 | 50970534989 |
12 | 2165002b22b |
13 | c5692a56c4 |
14 | 653c34b2cb |
15 | 3661ca942e |
hex | 1ead20ad83 |
131753618819 has 2 divisors, whose sum is σ = 131753618820. Its totient is φ = 131753618818.
The previous prime is 131753618783. The next prime is 131753618831. The reversal of 131753618819 is 918816357131.
It is a strong prime.
It is an emirp because it is prime and its reverse (918816357131) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 131753618819 - 212 = 131753614723 is a prime.
It is a super-2 number, since 2×1317536188192 (a number of 23 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (131753618879) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65876809409 + 65876809410.
It is an arithmetic number, because the mean of its divisors is an integer number (65876809410).
Almost surely, 2131753618819 is an apocalyptic number.
131753618819 is a deficient number, since it is larger than the sum of its proper divisors (1).
131753618819 is an equidigital number, since it uses as much as digits as its factorization.
131753618819 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1088640, while the sum is 53.
The spelling of 131753618819 in words is "one hundred thirty-one billion, seven hundred fifty-three million, six hundred eighteen thousand, eight hundred nineteen".
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