Base | Representation |
---|---|
bin | 11000101000000101… |
… | …00111011011111111 |
3 | 1021010101220002120201 |
4 | 30110002213123333 |
5 | 204034102211111 |
6 | 10023530424331 |
7 | 645426524302 |
oct | 142402473377 |
9 | 37111802521 |
10 | 13221132031 |
11 | 5674a911a8 |
12 | 268b8920a7 |
13 | 1329147763 |
14 | 8d5c8cb39 |
15 | 525a826c1 |
hex | 3140a76ff |
13221132031 has 8 divisors (see below), whose sum is σ = 13250772144. Its totient is φ = 13191521280.
The previous prime is 13221132011. The next prime is 13221132053. The reversal of 13221132031 is 13023112231.
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 13221132031 - 217 = 13221000959 is a prime.
It is a super-2 number, since 2×132211320312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13221132011) 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, 1062361 + ... + 1074733.
It is an arithmetic number, because the mean of its divisors is an integer number (1656346518).
Almost surely, 213221132031 is an apocalyptic number.
13221132031 is a deficient number, since it is larger than the sum of its proper divisors (29640113).
13221132031 is a wasteful number, since it uses less digits than its factorization.
13221132031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14681.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 13221132031 its reverse (13023112231), we get a palindrome (26244244262).
The spelling of 13221132031 in words is "thirteen billion, two hundred twenty-one million, one hundred thirty-two thousand, thirty-one".
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