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223039 = 297691
BaseRepresentation
bin110110011100111111
3102022221201
4312130333
524114124
64440331
71616155
oct663477
9368851
10223039
11142633
12a90a7
137a69b
145b3d5
1546144
hex3673f

223039 has 4 divisors (see below), whose sum is σ = 230760. Its totient is φ = 215320.

The previous prime is 223037. The next prime is 223049. The reversal of 223039 is 930322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930322 = 2465161.

It is a cyclic number.

It is not a de Polignac number, because 223039 - 21 = 223037 is a prime.

It is a d-powerful number, because it can be written as 2 + 215 + 0 + 38 + 311 + 94 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223037) 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 3 ways as a sum of consecutive naturals, for example, 3817 + ... + 3874.

It is an arithmetic number, because the mean of its divisors is an integer number (57690).

2223039 is an apocalyptic number.

223039 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

223039 is a deficient number, since it is larger than the sum of its proper divisors (7721).

223039 is an equidigital number, since it uses as much as digits as its factorization.

223039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7720.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 223039 is about 472.2700498655. The cubic root of 223039 is about 60.6448048803.

The spelling of 223039 in words is "two hundred twenty-three thousand, thirty-nine".

Divisors: 1 29 7691 223039