Base | Representation |
---|---|
bin | 111101001000010010… |
… | …0110111101111100100 |
3 | 110112211202022210220120 |
4 | 1322100210313233210 |
5 | 4122322244302432 |
6 | 140150130201540 |
7 | 12325051501344 |
oct | 1722044675744 |
9 | 415752283816 |
10 | 131274603492 |
11 | 5074510064a |
12 | 215377232b0 |
13 | c4c0c89c96 |
14 | 64d4898d24 |
15 | 3634bd8c2c |
hex | 1e90937be4 |
131274603492 has 12 divisors (see below), whose sum is σ = 306307408176. Its totient is φ = 43758201160.
The previous prime is 131274603491. The next prime is 131274603503. The reversal of 131274603492 is 294306472131.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (12).
It is not an unprimeable number, because it can be changed into a prime (131274603491) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5469775134 + ... + 5469775157.
It is an arithmetic number, because the mean of its divisors is an integer number (25525617348).
Almost surely, 2131274603492 is an apocalyptic number.
131274603492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
131274603492 is an abundant number, since it is smaller than the sum of its proper divisors (175032804684).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131274603492 is a wasteful number, since it uses less digits than its factorization.
131274603492 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10939550298 (or 10939550296 counting only the distinct ones).
The product of its (nonzero) digits is 217728, while the sum is 42.
The spelling of 131274603492 in words is "one hundred thirty-one billion, two hundred seventy-four million, six hundred three thousand, four hundred ninety-two".
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