Base | Representation |
---|---|
bin | 1110001110000101000100… |
… | …00111000001000010010111 |
3 | 11002201101112202102020002102 |
4 | 13013002202013001002113 |
5 | 13044312111401210002 |
6 | 150301135513032315 |
7 | 6405121526402636 |
oct | 707024207010227 |
9 | 132641482366072 |
10 | 31270081663127 |
11 | 9a666269869aa |
12 | 36104270b569b |
13 | 145a9aa064978 |
14 | 7a16a12a751d |
15 | 393617356a02 |
hex | 1c70a21c1097 |
31270081663127 has 16 divisors (see below), whose sum is σ = 31723628009472. Its totient is φ = 30819695676000.
The previous prime is 31270081663069. The next prime is 31270081663153. The reversal of 31270081663127 is 72136618007213.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 31270081663127 - 228 = 31269813227671 is a prime.
It is a super-2 number, since 2×312700816631272 (a number of 28 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31270081663427) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37936877 + ... + 38752377.
It is an arithmetic number, because the mean of its divisors is an integer number (1982726750592).
Almost surely, 231270081663127 is an apocalyptic number.
31270081663127 is a deficient number, since it is larger than the sum of its proper divisors (453546346345).
31270081663127 is a wasteful number, since it uses less digits than its factorization.
31270081663127 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 817438.
The product of its (nonzero) digits is 508032, while the sum is 47.
The spelling of 31270081663127 in words is "thirty-one trillion, two hundred seventy billion, eighty-one million, six hundred sixty-three thousand, one hundred twenty-seven".
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