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220193 = 317103
BaseRepresentation
bin110101110000100001
3102012001022
4311300201
524021233
64415225
71604651
oct656041
9365038
10220193
11140486
12a7515
13792bc
145a361
1545398
hex35c21

220193 has 4 divisors (see below), whose sum is σ = 227328. Its totient is φ = 213060.

The previous prime is 220189. The next prime is 220217. The reversal of 220193 is 391022.

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: 391022 = 2195511.

It is a cyclic number.

It is not a de Polignac number, because 220193 - 22 = 220189 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220123) 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, 3521 + ... + 3582.

It is an arithmetic number, because the mean of its divisors is an integer number (56832).

2220193 is an apocalyptic number.

It is an amenable number.

220193 is a deficient number, since it is larger than the sum of its proper divisors (7135).

220193 is an equidigital number, since it uses as much as digits as its factorization.

220193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7134.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 220193 is about 469.2472695712. The cubic root of 220193 is about 60.3857553064.

It can be divided in two parts, 22019 and 3, that added together give a palindrome (22022).

The spelling of 220193 in words is "two hundred twenty thousand, one hundred ninety-three".

Divisors: 1 31 7103 220193