Base | Representation |
---|---|
bin | 1100000101111… |
… | …0110111001001 |
3 | 10112102212000222 |
4 | 3001132313021 |
5 | 100441021301 |
6 | 5011035425 |
7 | 1154054210 |
oct | 301366711 |
9 | 115385028 |
10 | 50720201 |
11 | 266a2924 |
12 | 14b9bb75 |
13 | a67b16c |
14 | 6a44077 |
15 | 46bd31b |
hex | 305edc9 |
50720201 has 4 divisors (see below), whose sum is σ = 57965952. Its totient is φ = 43474452.
The previous prime is 50720183. The next prime is 50720203. The reversal of 50720201 is 10202705.
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: 10202705 = 5 ⋅2040541.
It is a de Polignac number, because none of the positive numbers 2k-50720201 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 50720201.
It is not an unprimeable number, because it can be changed into a prime (50720203) 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, 3622865 + ... + 3622878.
It is an arithmetic number, because the mean of its divisors is an integer number (14491488).
Almost surely, 250720201 is an apocalyptic number.
It is an amenable number.
50720201 is a deficient number, since it is larger than the sum of its proper divisors (7245751).
50720201 is an equidigital number, since it uses as much as digits as its factorization.
50720201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7245750.
The product of its (nonzero) digits is 140, while the sum is 17.
The square root of 50720201 is about 7121.8116374979. The cubic root of 50720201 is about 370.1635532104.
Adding to 50720201 its reverse (10202705), we get a palindrome (60922906).
The spelling of 50720201 in words is "fifty million, seven hundred twenty thousand, two hundred one".
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