Base | Representation |
---|---|
bin | 1001100100000101101101… |
… | …00001110111101010110111 |
3 | 2202110120021000222200222021 |
4 | 10302002312201313222313 |
5 | 10224033420341311203 |
6 | 112421335441014011 |
7 | 4300312202142601 |
oct | 462026641675267 |
9 | 82416230880867 |
10 | 21031222213303 |
11 | 67793227249a5 |
12 | 2437ba9924307 |
13 | b9730ac157b3 |
14 | 529cb9182171 |
15 | 26710c69d5bd |
hex | 1320b6877ab7 |
21031222213303 has 32 divisors (see below), whose sum is σ = 21722324843520. Its totient is φ = 20351082124800.
The previous prime is 21031222213297. The next prime is 21031222213319. The reversal of 21031222213303 is 30331222213012.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-21031222213303 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (21031222217303) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8504334475 + ... + 8504336947.
It is an arithmetic number, because the mean of its divisors is an integer number (678822651360).
Almost surely, 221031222213303 is an apocalyptic number.
21031222213303 is a deficient number, since it is larger than the sum of its proper divisors (691102630217).
21031222213303 is a wasteful number, since it uses less digits than its factorization.
21031222213303 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5287.
The product of its (nonzero) digits is 2592, while the sum is 25.
Adding to 21031222213303 its reverse (30331222213012), we get a palindrome (51362444426315).
The spelling of 21031222213303 in words is "twenty-one trillion, thirty-one billion, two hundred twenty-two million, two hundred thirteen thousand, three hundred three".
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