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223442113 = 269982787
BaseRepresentation
bin11010101000101…
…11010011000001
3120120110000221211
431110113103001
5424200121423
634101050121
75352140506
oct1524272301
9516400854
10223442113
11105144404
12629b6941
13373a438b
14219654ad
151493a10d
hexd5174c1

223442113 has 4 divisors (see below), whose sum is σ = 223527600. Its totient is φ = 223356628.

The previous prime is 223442111. The next prime is 223442143. The reversal of 223442113 is 311244322.

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, and also an emirpimes, since its reverse is a distinct semiprime: 311244322 = 2155622161.

It is a cyclic number.

It is not a de Polignac number, because 223442113 - 21 = 223442111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223442111) 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, 38695 + ... + 44092.

It is an arithmetic number, because the mean of its divisors is an integer number (55881900).

Almost surely, 2223442113 is an apocalyptic number.

It is an amenable number.

223442113 is a deficient number, since it is larger than the sum of its proper divisors (85487).

223442113 is an equidigital number, since it uses as much as digits as its factorization.

223442113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85486.

The product of its digits is 1152, while the sum is 22.

The square root of 223442113 is about 14947.9802314560. The cubic root of 223442113 is about 606.8131866781.

Adding to 223442113 its reverse (311244322), we get a palindrome (534686435).

The spelling of 223442113 in words is "two hundred twenty-three million, four hundred forty-two thousand, one hundred thirteen".

Divisors: 1 2699 82787 223442113