Base | Representation |
---|---|
bin | 111011010000… |
… | …1001010111111 |
3 | 2011110110110122 |
4 | 1312201022333 |
5 | 30423200423 |
6 | 3025525155 |
7 | 525036530 |
oct | 166411277 |
9 | 64413418 |
10 | 31068863 |
11 | 165a0551 |
12 | a4a37bb |
13 | 658a657 |
14 | 41aa687 |
15 | 2ada8c8 |
hex | 1da12bf |
31068863 has 16 divisors (see below), whose sum is σ = 36771840. Its totient is φ = 25694496.
The previous prime is 31068859. The next prime is 31068871. The reversal of 31068863 is 36886013.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 31068863 - 22 = 31068859 is a prime.
It is a super-2 number, since 2×310688632 = 1930548496225538, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31068803) 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, 35570 + ... + 36432.
It is an arithmetic number, because the mean of its divisors is an integer number (2298240).
Almost surely, 231068863 is an apocalyptic number.
31068863 is a deficient number, since it is larger than the sum of its proper divisors (5702977).
31068863 is a wasteful number, since it uses less digits than its factorization.
31068863 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1046.
The product of its (nonzero) digits is 20736, while the sum is 35.
The square root of 31068863 is about 5573.9450122871. The cubic root of 31068863 is about 314.3705006293.
It can be divided in two parts, 31068 and 863, that multiplied together give a square (26811684 = 51782).
The spelling of 31068863 in words is "thirty-one million, sixty-eight thousand, eight hundred sixty-three".
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