Base | Representation |
---|---|
bin | 11000101000001100… |
… | …11011110111101111 |
3 | 1021010110202221222012 |
4 | 30110012123313233 |
5 | 204034331230411 |
6 | 10024004111435 |
7 | 645441164246 |
oct | 142406336757 |
9 | 37113687865 |
10 | 13222133231 |
11 | 567560543a |
12 | 269009557b |
13 | 1329408398 |
14 | 8d606d95d |
15 | 525bce18b |
hex | 31419bdef |
13222133231 has 8 divisors (see below), whose sum is σ = 14736743280. Its totient is φ = 11789394048.
The previous prime is 13222133219. The next prime is 13222133251. The reversal of 13222133231 is 13233122231.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13222133231 - 218 = 13221871087 is a prime.
It is a super-2 number, since 2×132221332312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13222133197 and 13222133206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13222133251) 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, 20467376 + ... + 20468021.
It is an arithmetic number, because the mean of its divisors is an integer number (1842092910).
Almost surely, 213222133231 is an apocalyptic number.
13222133231 is a deficient number, since it is larger than the sum of its proper divisors (1514610049).
13222133231 is a wasteful number, since it uses less digits than its factorization.
13222133231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40935433.
The product of its digits is 1296, while the sum is 23.
Adding to 13222133231 its reverse (13233122231), we get a palindrome (26455255462).
The spelling of 13222133231 in words is "thirteen billion, two hundred twenty-two million, one hundred thirty-three thousand, two hundred thirty-one".
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