Search a number
220201 = 1712953
BaseRepresentation
bin110101110000101001
3102012001121
4311300221
524021301
64415241
71604662
oct656051
9365047
10220201
11140493
12a7521
13792c7
145a369
15453a1
hex35c29

220201 has 4 divisors (see below), whose sum is σ = 233172. Its totient is φ = 207232.

The previous prime is 220189. The next prime is 220217. The reversal of 220201 is 102022.

Adding to 220201 its reverse (102022), we get a palindrome (322223).

It is a happy number.

220201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90601 + 129600 = 301^2 + 360^2 .

It is a cyclic number.

It is not a de Polignac number, because 220201 - 25 = 220169 is a prime.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (220291) 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, 6460 + ... + 6493.

It is an arithmetic number, because the mean of its divisors is an integer number (58293).

2220201 is an apocalyptic number.

It is an amenable number.

220201 is a deficient number, since it is larger than the sum of its proper divisors (12971).

220201 is a wasteful number, since it uses less digits than its factorization.

220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12970.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 220201 is about 469.2557937842. The cubic root of 220201 is about 60.3864866045.

The spelling of 220201 in words is "two hundred twenty thousand, two hundred one", and thus it is an iban number.

Divisors: 1 17 12953 220201