Base | Representation |
---|---|
bin | 10100100000100111… |
… | …010100000001100111 |
3 | 2002211202022011200021 |
4 | 110200213110001213 |
5 | 330100113404111 |
6 | 14041120100011 |
7 | 1406504010424 |
oct | 244047240147 |
9 | 62752264607 |
10 | 22022013031 |
11 | 9380941377 |
12 | 4327164607 |
13 | 20cc58b755 |
14 | 10cca70d4b |
15 | 88d52ad71 |
hex | 5209d4067 |
22022013031 has 4 divisors (see below), whose sum is σ = 22028368392. Its totient is φ = 22015657672.
The previous prime is 22022012989. The next prime is 22022013037. The reversal of 22022013031 is 13031022022.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 22022013031 - 213 = 22022004839 is a prime.
It is a super-2 number, since 2×220220130312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 22022012996 and 22022013014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22022013037) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3172480 + ... + 3179413.
It is an arithmetic number, because the mean of its divisors is an integer number (5507092098).
Almost surely, 222022013031 is an apocalyptic number.
22022013031 is a deficient number, since it is larger than the sum of its proper divisors (6355361).
22022013031 is an equidigital number, since it uses as much as digits as its factorization.
22022013031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6355360.
The product of its (nonzero) digits is 144, while the sum is 16.
Adding to 22022013031 its reverse (13031022022), we get a palindrome (35053035053).
The spelling of 22022013031 in words is "twenty-two billion, twenty-two million, thirteen thousand, thirty-one".
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