Base | Representation |
---|---|
bin | 11000001110100… |
… | …00101111111001 |
3 | 112011102011102111 |
4 | 30013100233321 |
5 | 404011331301 |
6 | 32055532321 |
7 | 5015266606 |
oct | 1407205771 |
9 | 464364374 |
10 | 203230201 |
11 | a4799949 |
12 | 5808a0a1 |
13 | 33148675 |
14 | 1cdc36ad |
15 | 12c96551 |
hex | c1d0bf9 |
203230201 has 4 divisors (see below), whose sum is σ = 203385600. Its totient is φ = 203074804.
The previous prime is 203230199. The next prime is 203230211. The reversal of 203230201 is 102032302.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102032302 = 2 ⋅51016151.
It is a cyclic number.
It is not a de Polignac number, because 203230201 - 21 = 203230199 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (203230211) 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, 75721 + ... + 78358.
It is an arithmetic number, because the mean of its divisors is an integer number (50846400).
Almost surely, 2203230201 is an apocalyptic number.
It is an amenable number.
203230201 is a deficient number, since it is larger than the sum of its proper divisors (155399).
203230201 is a wasteful number, since it uses less digits than its factorization.
203230201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 155398.
The product of its (nonzero) digits is 72, while the sum is 13.
The square root of 203230201 is about 14255.8830312261. The cubic root of 203230201 is about 587.9351365737.
Adding to 203230201 its reverse (102032302), we get a palindrome (305262503).
The spelling of 203230201 in words is "two hundred three million, two hundred thirty thousand, two hundred one".
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