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220323 = 32712
BaseRepresentation
bin110101110010100011
3102012020010
4311302203
524022243
64420003
71605225
oct656243
9365203
10220323
11140594
12a7603
137938c
145a415
1545433
hex35ca3

220323 has 6 divisors (see below), whose sum is σ = 294852. Its totient is φ = 146340.

The previous prime is 220307. The next prime is 220327. The reversal of 220323 is 323022.

It is not a de Polignac number, because 220323 - 24 = 220307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220299 and 220308.

It is not an unprimeable number, because it can be changed into a prime (220327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 678 + ... + 948.

It is an arithmetic number, because the mean of its divisors is an integer number (49142).

2220323 is an apocalyptic number.

220323 is a deficient number, since it is larger than the sum of its proper divisors (74529).

220323 is an frugal number, since it uses more digits than its factorization.

220323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 220323 is about 469.3857688512. The cubic root of 220323 is about 60.3976367071.

Multiplying 220323 by its sum of digits (12), we get a square (2643876 = 16262).

Adding to 220323 its reverse (323022), we get a palindrome (543345).

The spelling of 220323 in words is "two hundred twenty thousand, three hundred twenty-three", and thus it is an iban number.

Divisors: 1 3 271 813 73441 220323