Base | Representation |
---|---|
bin | 110010011011101011110… |
… | …0000110001100000110001 |
3 | 220112122011001002022110021 |
4 | 1210313113200301200301 |
5 | 1402031000333110142 |
6 | 22424123521203441 |
7 | 1313530334250154 |
oct | 144672740614061 |
9 | 26478131068407 |
10 | 6931397941297 |
11 | 2232653489265 |
12 | 93b427190581 |
13 | 3b38219bb69b |
14 | 19d6a5157c9b |
15 | c047cbc8267 |
hex | 64dd7831831 |
6931397941297 has 8 divisors (see below), whose sum is σ = 7322548467200. Its totient is φ = 6542881426224.
The previous prime is 6931397941291. The next prime is 6931397941319. The reversal of 6931397941297 is 7921497931396.
6931397941297 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-6931397941297 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (6931397941291) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658497297 + ... + 658507822.
It is an arithmetic number, because the mean of its divisors is an integer number (915318558400).
Almost surely, 26931397941297 is an apocalyptic number.
It is an amenable number.
6931397941297 is a deficient number, since it is larger than the sum of its proper divisors (391150525903).
6931397941297 is a wasteful number, since it uses less digits than its factorization.
6931397941297 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1317005415.
The product of its digits is 138883248, while the sum is 70.
Subtracting 6931397941297 from its reverse (7921497931396), we obtain a palindrome (990099990099).
The spelling of 6931397941297 in words is "six trillion, nine hundred thirty-one billion, three hundred ninety-seven million, nine hundred forty-one thousand, two hundred ninety-seven".
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