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223289 = 1153383
BaseRepresentation
bin110110100000111001
3102100021222
4312200321
524121124
64441425
71616663
oct664071
9370258
10223289
11142840
12a9275
137a831
145b533
154625e
hex36839

223289 has 8 divisors (see below), whose sum is σ = 248832. Its totient is φ = 198640.

The previous prime is 223283. The next prime is 223291. The reversal of 223289 is 982322.

223289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223289 - 24 = 223273 is a prime.

It is a super-3 number, since 3×2232893 = 33398213828059707, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392 + ... + 774.

It is an arithmetic number, because the mean of its divisors is an integer number (31104).

2223289 is an apocalyptic number.

It is an amenable number.

223289 is a deficient number, since it is larger than the sum of its proper divisors (25543).

223289 is a wasteful number, since it uses less digits than its factorization.

223289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447.

The product of its digits is 1728, while the sum is 26.

The square root of 223289 is about 472.5346548138. The cubic root of 223289 is about 60.6674549402.

It can be divided in two parts, 223 and 289, that added together give a 9-th power (512 = 29).

The spelling of 223289 in words is "two hundred twenty-three thousand, two hundred eighty-nine".

Divisors: 1 11 53 383 583 4213 20299 223289