Base | Representation |
---|---|
bin | 10100100001001010… |
… | …000101111001100101 |
3 | 2002212101110101002200 |
4 | 110201022011321211 |
5 | 330104432131323 |
6 | 14042043325113 |
7 | 1406644342221 |
oct | 244112057145 |
9 | 62771411080 |
10 | 22031130213 |
11 | 9385aa9234 |
12 | 432a220799 |
13 | 2101431531 |
14 | 10cdd65781 |
15 | 88e22c443 |
hex | 521285e65 |
22031130213 has 24 divisors (see below), whose sum is σ = 32330489568. Its totient is φ = 14453521632.
The previous prime is 22031130193. The next prime is 22031130241. The reversal of 22031130213 is 31203113022.
It is not a de Polignac number, because 22031130213 - 25 = 22031130181 is a prime.
It is a super-2 number, since 2×220311302132 (a number of 21 digits) contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22031130013) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 592806 + ... + 628872.
It is an arithmetic number, because the mean of its divisors is an integer number (1347103732).
Almost surely, 222031130213 is an apocalyptic number.
It is an amenable number.
22031130213 is a deficient number, since it is larger than the sum of its proper divisors (10299359355).
22031130213 is a wasteful number, since it uses less digits than its factorization.
22031130213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37153 (or 37150 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 22031130213 its reverse (31203113022), we get a palindrome (53234243235).
The spelling of 22031130213 in words is "twenty-two billion, thirty-one million, one hundred thirty thousand, two hundred thirteen".
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