Base | Representation |
---|---|
bin | 11101000101000111… |
… | …110010110101100110 |
3 | 2222121002022000022202 |
4 | 131011013302311212 |
5 | 1002421424122324 |
6 | 22202212054502 |
7 | 2153525244140 |
oct | 350507626546 |
9 | 88532260282 |
10 | 31224442214 |
11 | 12273424649 |
12 | 6075004432 |
13 | 2c37c66914 |
14 | 1722cdbc90 |
15 | c2b3918ae |
hex | 7451f2d66 |
31224442214 has 16 divisors (see below), whose sum is σ = 53530422048. Its totient is φ = 13381202112.
The previous prime is 31224442213. The next prime is 31224442229. The reversal of 31224442214 is 41224442213.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31224442211) 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 7 ways as a sum of consecutive naturals, for example, 289424 + ... + 382380.
It is an arithmetic number, because the mean of its divisors is an integer number (3345651378).
Almost surely, 231224442214 is an apocalyptic number.
31224442214 is a deficient number, since it is larger than the sum of its proper divisors (22305979834).
31224442214 is a wasteful number, since it uses less digits than its factorization.
31224442214 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 116959.
The product of its digits is 12288, while the sum is 29.
Adding to 31224442214 its reverse (41224442213), we get a palindrome (72448884427).
Subtracting 31224442214 from its reverse (41224442213), we obtain a palindrome (9999999999).
The spelling of 31224442214 in words is "thirty-one billion, two hundred twenty-four million, four hundred forty-two thousand, two hundred fourteen".
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