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223244142 = 23119734871
BaseRepresentation
bin11010100111001…
…10111101101110
3120120001222101120
431103212331232
5424122303032
634052521410
75350354362
oct1523467556
9516058346
10223244142
111050196a0
1262920266
1337335234
14219132a2
15148eb62c
hexd4e6f6e

223244142 has 32 divisors (see below), whose sum is σ = 492113664. Its totient is φ = 66950400.

The previous prime is 223244137. The next prime is 223244149. The reversal of 223244142 is 241442322.

223244142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2232441423 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223244149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11034 + ... + 23837.

It is an arithmetic number, because the mean of its divisors is an integer number (15378552).

Almost surely, 2223244142 is an apocalyptic number.

223244142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

223244142 is an abundant number, since it is smaller than the sum of its proper divisors (268869522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223244142 is a wasteful number, since it uses less digits than its factorization.

223244142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34984.

The product of its digits is 3072, while the sum is 24.

The square root of 223244142 is about 14941.3567657024. The cubic root of 223244142 is about 606.6339203970.

Adding to 223244142 its reverse (241442322), we get a palindrome (464686464).

The spelling of 223244142 in words is "two hundred twenty-three million, two hundred forty-four thousand, one hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 97 194 291 582 1067 2134 3201 6402 34871 69742 104613 209226 383581 767162 1150743 2301486 3382487 6764974 10147461 20294922 37207357 74414714 111622071 223244142