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223349 = 731907
BaseRepresentation
bin110110100001110101
3102100101012
4312201311
524121344
64442005
71620110
oct664165
9370335
10223349
11142895
12a9305
137a879
145b577
154629e
hex36875

223349 has 4 divisors (see below), whose sum is σ = 255264. Its totient is φ = 191436.

The previous prime is 223339. The next prime is 223361. The reversal of 223349 is 943322.

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.

It is not a de Polignac number, because 223349 - 216 = 157813 is a prime.

It is a d-powerful number, because it can be written as 211 + 215 + 38 + 311 + 46 + 93 .

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223319) 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, 15947 + ... + 15960.

It is an arithmetic number, because the mean of its divisors is an integer number (63816).

2223349 is an apocalyptic number.

It is an amenable number.

223349 is a deficient number, since it is larger than the sum of its proper divisors (31915).

223349 is an equidigital number, since it uses as much as digits as its factorization.

223349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31914.

The product of its digits is 1296, while the sum is 23.

The square root of 223349 is about 472.5981379566. The cubic root of 223349 is about 60.6728884386.

The spelling of 223349 in words is "two hundred twenty-three thousand, three hundred forty-nine".

Divisors: 1 7 31907 223349