Base | Representation |
---|---|
bin | 10010110101011001… |
… | …111000011110110111 |
3 | 1221012101202121201210 |
4 | 102311121320132313 |
5 | 312404133031411 |
6 | 13142424052503 |
7 | 1314103320306 |
oct | 226531703667 |
9 | 57171677653 |
10 | 20223330231 |
11 | 86385a7365 |
12 | 3b04904133 |
13 | 1ba3a400c0 |
14 | d9bc1c43d |
15 | 7d5682ca6 |
hex | 4b56787b7 |
20223330231 has 16 divisors (see below), whose sum is σ = 29530811520. Its totient is φ = 12234190560.
The previous prime is 20223330229. The next prime is 20223330247. The reversal of 20223330231 is 13203332202.
It is not a de Polignac number, because 20223330231 - 21 = 20223330229 is a prime.
It is a super-2 number, since 2×202233302312 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 20223330198 and 20223330207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20223330331) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4392165 + ... + 4396766.
It is an arithmetic number, because the mean of its divisors is an integer number (1845675720).
Almost surely, 220223330231 is an apocalyptic number.
20223330231 is a deficient number, since it is larger than the sum of its proper divisors (9307481289).
20223330231 is a wasteful number, since it uses less digits than its factorization.
20223330231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8789006.
The product of its (nonzero) digits is 1296, while the sum is 21.
Adding to 20223330231 its reverse (13203332202), we get a palindrome (33426662433).
The spelling of 20223330231 in words is "twenty billion, two hundred twenty-three million, three hundred thirty thousand, two hundred thirty-one".
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