Base | Representation |
---|---|
bin | 11100111011100001… |
… | …010100011000000111 |
3 | 2222011212012020111000 |
4 | 130323201110120013 |
5 | 1002104210023111 |
6 | 22134215344343 |
7 | 2146531132533 |
oct | 347341243007 |
9 | 88155166430 |
10 | 31063361031 |
11 | 121a05039aa |
12 | 602b0820b3 |
13 | 2c10788001 |
14 | 170976abc3 |
15 | c1c173c56 |
hex | 73b854607 |
31063361031 has 8 divisors (see below), whose sum is σ = 46019794160. Its totient is φ = 20708907336.
The previous prime is 31063360997. The next prime is 31063361033. The reversal of 31063361031 is 13016336013.
31063361031 is a `hidden beast` number, since 3 + 10 + 6 + 3 + 3 + 610 + 31 = 666.
It is not a de Polignac number, because 31063361031 - 213 = 31063352839 is a prime.
It is a super-2 number, since 2×310633610312 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1150494853 = 31063361031 / (3 + 1 + 0 + 6 + 3 + 3 + 6 + 1 + 0 + 3 + 1).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 31063360986 and 31063361004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31063361033) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575247400 + ... + 575247453.
It is an arithmetic number, because the mean of its divisors is an integer number (5752474270).
Almost surely, 231063361031 is an apocalyptic number.
31063361031 is a deficient number, since it is larger than the sum of its proper divisors (14956433129).
31063361031 is a wasteful number, since it uses less digits than its factorization.
31063361031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1150494862 (or 1150494856 counting only the distinct ones).
The product of its (nonzero) digits is 2916, while the sum is 27.
Adding to 31063361031 its reverse (13016336013), we get a palindrome (44079697044).
The spelling of 31063361031 in words is "thirty-one billion, sixty-three million, three hundred sixty-one thousand, thirty-one".
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