Base | Representation |
---|---|
bin | 110001111110011000010… |
… | …0001000110100101111111 |
3 | 220022121201020211112110011 |
4 | 1203330300201012211333 |
5 | 1400013104433043211 |
6 | 22335155142124051 |
7 | 1306142002403443 |
oct | 143746041064577 |
9 | 26277636745404 |
10 | 6868466690431 |
11 | 220899a428025 |
12 | 92b1a3720627 |
13 | 3aa902b9b338 |
14 | 19a615276823 |
15 | bd9e7e61921 |
hex | 63f3084697f |
6868466690431 has 2 divisors, whose sum is σ = 6868466690432. Its totient is φ = 6868466690430.
The previous prime is 6868466690419. The next prime is 6868466690483. The reversal of 6868466690431 is 1340966648686.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 6868466690431 - 223 = 6868458301823 is a prime.
It is a super-2 number, since 2×68684666904312 (a number of 26 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (6868466690401) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3434233345215 + 3434233345216.
It is an arithmetic number, because the mean of its divisors is an integer number (3434233345216).
Almost surely, 26868466690431 is an apocalyptic number.
6868466690431 is a deficient number, since it is larger than the sum of its proper divisors (1).
6868466690431 is an equidigital number, since it uses as much as digits as its factorization.
6868466690431 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 214990848, while the sum is 67.
The spelling of 6868466690431 in words is "six trillion, eight hundred sixty-eight billion, four hundred sixty-six million, six hundred ninety thousand, four hundred thirty-one".
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