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BaseRepresentation
bin110110011101111101
3102100001000
4312131331
524114401
64440513
71616304
oct663575
9370030
10223101
1114268a
12a9139
137a718
145b43b
1546186
hex3677d

223101 has 8 divisors (see below), whose sum is σ = 330560. Its totient is φ = 148716.

The previous prime is 223099. The next prime is 223103. The reversal of 223101 is 101322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (223099) and next prime (223103).

It is not a de Polignac number, because 223101 - 21 = 223099 is a prime.

It is a super-3 number, since 3×2231013 = 33313925137497903, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4105 + ... + 4158.

It is an arithmetic number, because the mean of its divisors is an integer number (41320).

2223101 is an apocalyptic number.

It is an amenable number.

223101 is a deficient number, since it is larger than the sum of its proper divisors (107459).

223101 is an equidigital number, since it uses as much as digits as its factorization.

223101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8272 (or 8266 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 223101 is about 472.3356857151. The cubic root of 223101 is about 60.6504236728.

Adding to 223101 its reverse (101322), we get a palindrome (324423).

It can be divided in two parts, 223 and 101, that added together give a square (324 = 182).

The spelling of 223101 in words is "two hundred twenty-three thousand, one hundred one", and thus it is an iban number.

Divisors: 1 3 9 27 8263 24789 74367 223101