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220223201 = 1120020291
BaseRepresentation
bin11010010000001…
…01011011100001
3120100101111102212
431020011123201
5422334120301
633504051505
75312603102
oct1510053341
9510344385
10220223201
11103345a50
1261903b95
13368181b3
14213683a9
15145014bb
hexd2056e1

220223201 has 4 divisors (see below), whose sum is σ = 240243504. Its totient is φ = 200202900.

The previous prime is 220223197. The next prime is 220223231. The reversal of 220223201 is 102322022.

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.

It is a cyclic number.

It is not a de Polignac number, because 220223201 - 22 = 220223197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220223231) 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, 10010135 + ... + 10010156.

It is an arithmetic number, because the mean of its divisors is an integer number (60060876).

Almost surely, 2220223201 is an apocalyptic number.

It is an amenable number.

220223201 is a deficient number, since it is larger than the sum of its proper divisors (20020303).

220223201 is a wasteful number, since it uses less digits than its factorization.

220223201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20020302.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 220223201 is about 14839.9191709389. The cubic root of 220223201 is about 603.8851595546.

Adding to 220223201 its reverse (102322022), we get a palindrome (322545223).

The spelling of 220223201 in words is "two hundred twenty million, two hundred twenty-three thousand, two hundred one".

Divisors: 1 11 20020291 220223201