Base | Representation |
---|---|
bin | 101010111110111… |
… | …1111001111111101 |
3 | 10201111222002202220 |
4 | 1111331333033331 |
5 | 10423213010323 |
6 | 355041435553 |
7 | 50512313535 |
oct | 12575771775 |
9 | 3644862686 |
10 | 1442313213 |
11 | 68016a2a0 |
12 | 34303bbb9 |
13 | 19ca75193 |
14 | d97a84c5 |
15 | 869520e3 |
hex | 55f7f3fd |
1442313213 has 16 divisors (see below), whose sum is σ = 2098664256. Its totient is φ = 873815040.
The previous prime is 1442313209. The next prime is 1442313251. The reversal of 1442313213 is 3123132441.
It is a happy number.
It is not a de Polignac number, because 1442313213 - 22 = 1442313209 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1442313203) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113181 + ... + 125277.
It is an arithmetic number, because the mean of its divisors is an integer number (131166516).
Almost surely, 21442313213 is an apocalyptic number.
It is an amenable number.
1442313213 is a deficient number, since it is larger than the sum of its proper divisors (656351043).
1442313213 is a wasteful number, since it uses less digits than its factorization.
1442313213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15724.
The product of its digits is 1728, while the sum is 24.
The square root of 1442313213 is about 37977.7989488596. The cubic root of 1442313213 is about 1129.8475824915.
Adding to 1442313213 its reverse (3123132441), we get a palindrome (4565445654).
The spelling of 1442313213 in words is "one billion, four hundred forty-two million, three hundred thirteen thousand, two hundred thirteen".
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