Base | Representation |
---|---|
bin | 111011001001… |
… | …1110010011101 |
3 | 2011100200021100 |
4 | 1312103302131 |
5 | 30414422140 |
6 | 3024423313 |
7 | 524420646 |
oct | 166236235 |
9 | 64320240 |
10 | 31014045 |
11 | 16563347 |
12 | a477b39 |
13 | 656b70a |
14 | 41946cd |
15 | 2ac9530 |
hex | 1d93c9d |
31014045 has 12 divisors (see below), whose sum is σ = 53757756. Its totient is φ = 16540800.
The previous prime is 31014019. The next prime is 31014059. The reversal of 31014045 is 54041013.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 14220441 + 16793604 = 3771^2 + 4098^2 .
It is not a de Polignac number, because 31014045 - 25 = 31014013 is a prime.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 344556 + ... + 344645.
It is an arithmetic number, because the mean of its divisors is an integer number (4479813).
Almost surely, 231014045 is an apocalyptic number.
It is an amenable number.
31014045 is a deficient number, since it is larger than the sum of its proper divisors (22743711).
31014045 is a wasteful number, since it uses less digits than its factorization.
31014045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 689212 (or 689209 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 31014045 is about 5569.0254982358. The cubic root of 31014045 is about 314.1854996797.
Adding to 31014045 its reverse (54041013), we get a palindrome (85055058).
The spelling of 31014045 in words is "thirty-one million, fourteen thousand, forty-five".
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