Base | Representation |
---|---|
bin | 111100101010111 |
3 | 1120121111 |
4 | 13211113 |
5 | 1443223 |
6 | 355451 |
7 | 156364 |
oct | 74527 |
9 | 46544 |
10 | 31063 |
11 | 2137a |
12 | 15b87 |
13 | 111a6 |
14 | b46b |
15 | 930d |
hex | 7957 |
31063 has 2 divisors, whose sum is σ = 31064. Its totient is φ = 31062.
The previous prime is 31051. The next prime is 31069. The reversal of 31063 is 36013.
It is a strong prime.
It is an emirp because it is prime and its reverse (36013) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 31063 - 213 = 22871 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (31069) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15531 + 15532.
It is an arithmetic number, because the mean of its divisors is an integer number (15532).
231063 is an apocalyptic number.
31063 is a deficient number, since it is larger than the sum of its proper divisors (1).
31063 is an equidigital number, since it uses as much as digits as its factorization.
31063 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 54, while the sum is 13.
The square root of 31063 is about 176.2469857898. The cubic root of 31063 is about 31.4350724450.
Adding to 31063 its reverse (36013), we get a palindrome (67076).
Subtracting 31063 from its reverse (36013), we obtain a triangular number (4950 = T99).
It can be divided in two parts, 310 and 63, that added together give a palindrome (373).
The spelling of 31063 in words is "thirty-one thousand, sixty-three".
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