Base | Representation |
---|---|
bin | 100100101010011… |
… | …0110000110000111 |
3 | 10011201211200211021 |
4 | 1021110312012013 |
5 | 10004412414343 |
6 | 322023252011 |
7 | 42325352326 |
oct | 11124660607 |
9 | 3151750737 |
10 | 1230201223 |
11 | 581464429 |
12 | 2a3baa007 |
13 | 167b39c24 |
14 | b95520bd |
15 | 730040ed |
hex | 49536187 |
1230201223 has 4 divisors (see below), whose sum is σ = 1230321400. Its totient is φ = 1230081048.
The previous prime is 1230201221. The next prime is 1230201229. The reversal of 1230201223 is 3221020321.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 1230201223 - 21 = 1230201221 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1230201197 and 1230201206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230201221) 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, 43140 + ... + 65737.
It is an arithmetic number, because the mean of its divisors is an integer number (307580350).
Almost surely, 21230201223 is an apocalyptic number.
1230201223 is a deficient number, since it is larger than the sum of its proper divisors (120177).
1230201223 is a wasteful number, since it uses less digits than its factorization.
1230201223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 120176.
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 1230201223 is about 35074.2244818043. The cubic root of 1230201223 is about 1071.4996943170.
Adding to 1230201223 its reverse (3221020321), we get a palindrome (4451221544).
The spelling of 1230201223 in words is "one billion, two hundred thirty million, two hundred one thousand, two hundred twenty-three".
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