Base | Representation |
---|---|
bin | 100100011110110… |
… | …0110010000111001 |
3 | 10011022101002012201 |
4 | 1020331212100321 |
5 | 10001332411230 |
6 | 321244510201 |
7 | 42222511156 |
oct | 11075462071 |
9 | 3138332181 |
10 | 1224107065 |
11 | 578a81835 |
12 | 2a1b4b361 |
13 | 1667b510c |
14 | b880722d |
15 | 726ed5ca |
hex | 48f66439 |
1224107065 has 4 divisors (see below), whose sum is σ = 1468928484. Its totient is φ = 979285648.
The previous prime is 1224107063. The next prime is 1224107077. The reversal of 1224107065 is 5607014221.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5607014221 = 23 ⋅243783227.
It can be written as a sum of positive squares in 2 ways, for example, as 738698041 + 485409024 = 27179^2 + 22032^2 .
It is a cyclic number.
It is not a de Polignac number, because 1224107065 - 21 = 1224107063 is a prime.
It is a super-3 number, since 3×12241070653 (a number of 28 digits) contains 333 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1224107063) 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, 122410702 + ... + 122410711.
It is an arithmetic number, because the mean of its divisors is an integer number (367232121).
Almost surely, 21224107065 is an apocalyptic number.
It is an amenable number.
1224107065 is a deficient number, since it is larger than the sum of its proper divisors (244821419).
1224107065 is an equidigital number, since it uses as much as digits as its factorization.
1224107065 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 244821418.
The product of its (nonzero) digits is 3360, while the sum is 28.
The square root of 1224107065 is about 34987.2414602809. The cubic root of 1224107065 is about 1069.7274366165.
The spelling of 1224107065 in words is "one billion, two hundred twenty-four million, one hundred seven thousand, sixty-five".
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