Base | Representation |
---|---|
bin | 1000010011111010… |
… | …1000111101101111 |
3 | 12202111001012210200 |
4 | 2010332220331233 |
5 | 14032114410411 |
6 | 1005214204543 |
7 | 106200204516 |
oct | 20476507557 |
9 | 5674035720 |
10 | 2231013231 |
11 | a45392297 |
12 | 5231b3753 |
13 | 29729c895 |
14 | 17243167d |
15 | d0ce5e56 |
hex | 84fa8f6f |
2231013231 has 12 divisors (see below), whose sum is σ = 3392184120. Its totient is φ = 1409060880.
The previous prime is 2231013229. The next prime is 2231013283. The reversal of 2231013231 is 1323101322.
It is not a de Polignac number, because 2231013231 - 21 = 2231013229 is a prime.
It is a super-3 number, since 3×22310132313 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2231063231) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6523260 + ... + 6523601.
It is an arithmetic number, because the mean of its divisors is an integer number (282682010).
Almost surely, 22231013231 is an apocalyptic number.
2231013231 is a deficient number, since it is larger than the sum of its proper divisors (1161170889).
2231013231 is a wasteful number, since it uses less digits than its factorization.
2231013231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13046886 (or 13046883 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
The square root of 2231013231 is about 47233.6027738728. The cubic root of 2231013231 is about 1306.6743980421.
Adding to 2231013231 its reverse (1323101322), we get a palindrome (3554114553).
The spelling of 2231013231 in words is "two billion, two hundred thirty-one million, thirteen thousand, two hundred thirty-one".
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