Base | Representation |
---|---|
bin | 10001101011101010111… |
… | …100010000011111111001 |
3 | 11022011102222020202211112 |
4 | 101223222330100133321 |
5 | 124402032321122413 |
6 | 2330115231010105 |
7 | 153534603224630 |
oct | 21535274203771 |
9 | 4264388222745 |
10 | 1215122442233 |
11 | 42936aa38837 |
12 | 1775ba069935 |
13 | 8a77c60448b |
14 | 42b52b02517 |
15 | 2191c6392a8 |
hex | 11aeaf107f9 |
1215122442233 has 8 divisors (see below), whose sum is σ = 1390112693760. Its totient is φ = 1040482523520.
The previous prime is 1215122442203. The next prime is 1215122442251. The reversal of 1215122442233 is 3322442215121.
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 1215122442233 - 28 = 1215122441977 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1215122442233.
It is not an unprimeable number, because it can be changed into a prime (1215122442203) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87575768 + ... + 87589641.
It is an arithmetic number, because the mean of its divisors is an integer number (173764086720).
Almost surely, 21215122442233 is an apocalyptic number.
It is an amenable number.
1215122442233 is a deficient number, since it is larger than the sum of its proper divisors (174990251527).
1215122442233 is an equidigital number, since it uses as much as digits as its factorization.
1215122442233 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 175166407.
The product of its digits is 23040, while the sum is 32.
Adding to 1215122442233 its reverse (3322442215121), we get a palindrome (4537564657354).
The spelling of 1215122442233 in words is "one trillion, two hundred fifteen billion, one hundred twenty-two million, four hundred forty-two thousand, two hundred thirty-three".
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