Base | Representation |
---|---|
bin | 100011110011000… |
… | …1101110001001001 |
3 | 10002201021021220100 |
4 | 1013212031301021 |
5 | 4430001401301 |
6 | 315105520013 |
7 | 41524014255 |
oct | 10746156111 |
9 | 3081237810 |
10 | 1201200201 |
11 | 567056543 |
12 | 296343009 |
13 | 161b24866 |
14 | b5763265 |
15 | 706c6286 |
hex | 4798dc49 |
1201200201 has 6 divisors (see below), whose sum is σ = 1735066970. Its totient is φ = 800800128.
The previous prime is 1201200199. The next prime is 1201200233. The reversal of 1201200201 is 1020021021.
It can be written as a sum of positive squares in only one way, i.e., 707294025 + 493906176 = 26595^2 + 22224^2 .
It is not a de Polignac number, because 1201200201 - 21 = 1201200199 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 133466689 = 1201200201 / (1 + 2 + 0 + 1 + 2 + 0 + 0 + 2 + 0 + 1).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1201200241) 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, 66733336 + ... + 66733353.
Almost surely, 21201200201 is an apocalyptic number.
It is an amenable number.
1201200201 is a deficient number, since it is larger than the sum of its proper divisors (533866769).
1201200201 is a wasteful number, since it uses less digits than its factorization.
1201200201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 133466695 (or 133466692 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 9.
The square root of 1201200201 is about 34658.3352312254. The cubic root of 1201200201 is about 1063.0127299903.
Adding to 1201200201 its reverse (1020021021), we get a palindrome (2221221222).
The spelling of 1201200201 in words is "one billion, two hundred one million, two hundred thousand, two hundred one".
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