Base | Representation |
---|---|
bin | 1101011101010111111… |
… | …1000000100011010110 |
3 | 211002211100111020120012 |
4 | 3113111333000203112 |
5 | 12242021133043110 |
6 | 254120022240222 |
7 | 22463633612426 |
oct | 3272577004326 |
9 | 732740436505 |
10 | 231223331030 |
11 | 8a0745a6a0a |
12 | 38990286072 |
13 | 18a5bc87093 |
14 | b296bb0486 |
15 | 6034696905 |
hex | 35d5fc08d6 |
231223331030 has 16 divisors (see below), whose sum is σ = 429627867264. Its totient is φ = 89505805440.
The previous prime is 231223331023. The next prime is 231223331033. The reversal of 231223331030 is 30133322132.
It is a junction number, because it is equal to n+sod(n) for n = 231223330987 and 231223331005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231223331033) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372940547 + ... + 372941166.
It is an arithmetic number, because the mean of its divisors is an integer number (26851741704).
Almost surely, 2231223331030 is an apocalyptic number.
231223331030 is a deficient number, since it is larger than the sum of its proper divisors (198404536234).
231223331030 is a wasteful number, since it uses less digits than its factorization.
231223331030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 745881751.
The product of its (nonzero) digits is 1944, while the sum is 23.
Adding to 231223331030 its reverse (30133322132), we get a palindrome (261356653162).
The spelling of 231223331030 in words is "two hundred thirty-one billion, two hundred twenty-three million, three hundred thirty-one thousand, thirty".
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