Base | Representation |
---|---|
bin | 101010111110101… |
… | …0011000011110101 |
3 | 10201111121220111012 |
4 | 1111331103003311 |
5 | 10423141212323 |
6 | 355033522005 |
7 | 50510631044 |
oct | 12575230365 |
9 | 3644556435 |
10 | 1442132213 |
11 | 680056305 |
12 | 342b73305 |
13 | 19ca10992 |
14 | d975c55b |
15 | 86918678 |
hex | 55f530f5 |
1442132213 has 8 divisors (see below), whose sum is σ = 1492285080. Its totient is φ = 1392007680.
The previous prime is 1442132203. The next prime is 1442132227. The reversal of 1442132213 is 3122312441.
It can be written as a sum of positive squares in 4 ways, for example, as 473802289 + 968329924 = 21767^2 + 31118^2 .
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 1442132213 - 212 = 1442128117 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1442132203) 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, 186953 + ... + 194513.
It is an arithmetic number, because the mean of its divisors is an integer number (186535635).
Almost surely, 21442132213 is an apocalyptic number.
It is an amenable number.
1442132213 is a deficient number, since it is larger than the sum of its proper divisors (50152867).
1442132213 is an equidigital number, since it uses as much as digits as its factorization.
1442132213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14167.
The product of its digits is 1152, while the sum is 23.
The square root of 1442132213 is about 37975.4159029233. The cubic root of 1442132213 is about 1129.8003179154.
Adding to 1442132213 its reverse (3122312441), we get a palindrome (4564444654).
The spelling of 1442132213 in words is "one billion, four hundred forty-two million, one hundred thirty-two thousand, two hundred thirteen".
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