Base | Representation |
---|---|
bin | 11010001101110010100111 |
3 | 110221010221002 |
4 | 122031302213 |
5 | 3224402411 |
6 | 403143515 |
7 | 112261442 |
oct | 32156247 |
9 | 13833832 |
10 | 6872231 |
11 | 3974233 |
12 | 2374b9b |
13 | 1568012 |
14 | cac659 |
15 | 90b33b |
hex | 68dca7 |
6872231 has 2 divisors, whose sum is σ = 6872232. Its totient is φ = 6872230.
The previous prime is 6872219. The next prime is 6872237. The reversal of 6872231 is 1322786.
It is a happy number.
6872231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-6872231 is a prime.
It is a super-3 number, since 3×68722313 (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 6872194 and 6872203.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (6872237) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3436115 + 3436116.
It is an arithmetic number, because the mean of its divisors is an integer number (3436116).
Almost surely, 26872231 is an apocalyptic number.
6872231 is a deficient number, since it is larger than the sum of its proper divisors (1).
6872231 is an equidigital number, since it uses as much as digits as its factorization.
6872231 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 4032, while the sum is 29.
The square root of 6872231 is about 2621.4940396652. The cubic root of 6872231 is about 190.1220914273.
The spelling of 6872231 in words is "six million, eight hundred seventy-two thousand, two hundred thirty-one".
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