Base | Representation |
---|---|
bin | 100101000100111… |
… | …1110111011011001 |
3 | 10012201001101221011 |
4 | 1022021332323121 |
5 | 10021444143113 |
6 | 323242013521 |
7 | 42554640115 |
oct | 11211767331 |
9 | 3181041834 |
10 | 1244131033 |
11 | 589309072 |
12 | 2a87a72a1 |
13 | 16a9a6412 |
14 | bb33a745 |
15 | 7435663d |
hex | 4a27eed9 |
1244131033 has 4 divisors (see below), whose sum is σ = 1248377508. Its totient is φ = 1239884560.
The previous prime is 1244131027. The next prime is 1244131069. The reversal of 1244131033 is 3301314421.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3301314421 = 1019 ⋅3239759.
It can be written as a sum of positive squares in 2 ways, for example, as 1185562624 + 58568409 = 34432^2 + 7653^2 .
It is a cyclic number.
It is not a de Polignac number, because 1244131033 - 29 = 1244130521 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1244130995 and 1244131013.
It is not an unprimeable number, because it can be changed into a prime (1244131003) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2122798 + ... + 2123383.
It is an arithmetic number, because the mean of its divisors is an integer number (312094377).
Almost surely, 21244131033 is an apocalyptic number.
It is an amenable number.
1244131033 is a deficient number, since it is larger than the sum of its proper divisors (4246475).
1244131033 is an equidigital number, since it uses as much as digits as its factorization.
1244131033 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4246474.
The product of its (nonzero) digits is 864, while the sum is 22.
The square root of 1244131033 is about 35272.2416781242. The cubic root of 1244131033 is about 1075.5287920892.
Adding to 1244131033 its reverse (3301314421), we get a palindrome (4545445454).
The spelling of 1244131033 in words is "one billion, two hundred forty-four million, one hundred thirty-one thousand, thirty-three".
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