Base | Representation |
---|---|
bin | 1000010010000101… |
… | …0001000011101011 |
3 | 12201221120000020210 |
4 | 2010201101003223 |
5 | 14023132010011 |
6 | 1004341152203 |
7 | 106044564324 |
oct | 20441210353 |
9 | 5657500223 |
10 | 2223313131 |
11 | a41003076 |
12 | 5206bb663 |
13 | 295804b00 |
14 | 1713c944b |
15 | d02c46a6 |
hex | 848510eb |
2223313131 has 24 divisors (see below), whose sum is σ = 3233522160. Its totient is φ = 1358163456.
The previous prime is 2223313129. The next prime is 2223313223. The reversal of 2223313131 is 1313133222.
It is not a de Polignac number, because 2223313131 - 21 = 2223313129 is a prime.
It is a super-2 number, since 2×22233131312 = 9886242556954046322, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2223313098 and 2223313107.
It is not an unprimeable number, because it can be changed into a prime (2223313121) 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, 53455 + ... + 85463.
It is an arithmetic number, because the mean of its divisors is an integer number (134730090).
Almost surely, 22223313131 is an apocalyptic number.
2223313131 is a deficient number, since it is larger than the sum of its proper divisors (1010209029).
2223313131 is a wasteful number, since it uses less digits than its factorization.
2223313131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32175 (or 32162 counting only the distinct ones).
The product of its digits is 648, while the sum is 21.
The square root of 2223313131 is about 47152.0214943114. The cubic root of 2223313131 is about 1305.1693836302.
Adding to 2223313131 its reverse (1313133222), we get a palindrome (3536446353).
The spelling of 2223313131 in words is "two billion, two hundred twenty-three million, three hundred thirteen thousand, one hundred thirty-one".
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