Base | Representation |
---|---|
bin | 1011111111101000010101 |
3 | 12220202001100 |
4 | 23333220111 |
5 | 1301103323 |
6 | 151220313 |
7 | 35503542 |
oct | 13775025 |
9 | 5822040 |
10 | 3144213 |
11 | 1858326 |
12 | 1077699 |
13 | 8611a7 |
14 | 5bbbc9 |
15 | 421943 |
hex | 2ffa15 |
3144213 has 6 divisors (see below), whose sum is σ = 4541654. Its totient is φ = 2096136.
The previous prime is 3144191. The next prime is 3144217. The reversal of 3144213 is 3124413.
It can be written as a sum of positive squares in only one way, i.e., 2965284 + 178929 = 1722^2 + 423^2 .
It is not a de Polignac number, because 3144213 - 25 = 3144181 is a prime.
It is a Duffinian number.
It is a Curzon number.
3144213 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3144217) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174670 + ... + 174687.
Almost surely, 23144213 is an apocalyptic number.
It is an amenable number.
3144213 is a deficient number, since it is larger than the sum of its proper divisors (1397441).
3144213 is a wasteful number, since it uses less digits than its factorization.
3144213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 349363 (or 349360 counting only the distinct ones).
The product of its digits is 288, while the sum is 18.
The square root of 3144213 is about 1773.1928829092. The cubic root of 3144213 is about 146.4998971061.
Adding to 3144213 its reverse (3124413), we get a palindrome (6268626).
It can be divided in two parts, 31 and 44213, that added together give a palindrome (44244).
The spelling of 3144213 in words is "three million, one hundred forty-four thousand, two hundred thirteen".
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