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223142343 = 32311328619
BaseRepresentation
bin11010100110011…
…10000111000111
3120112212210202020
431103032013013
5424111023333
634050414223
75346451524
oct1523160707
9515783666
10223142343
11104a5a166
1262891373
13372caab8
14218c814b
15148cb3b3
hexd4ce1c7

223142343 has 16 divisors (see below), whose sum is σ = 313217280. Its totient is φ = 141029504.

The previous prime is 223142341. The next prime is 223142347. The reversal of 223142343 is 343241322.

It is a cyclic number.

It is not a de Polignac number, because 223142343 - 21 = 223142341 is a prime.

It is a super-3 number, since 3×2231423433 (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 (223142341) 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, 6513 + ... + 22106.

It is an arithmetic number, because the mean of its divisors is an integer number (19576080).

Almost surely, 2223142343 is an apocalyptic number.

223142343 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

223142343 is a deficient number, since it is larger than the sum of its proper divisors (90074937).

223142343 is a wasteful number, since it uses less digits than its factorization.

223142343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28758.

The product of its digits is 3456, while the sum is 24.

The square root of 223142343 is about 14937.9497589194. The cubic root of 223142343 is about 606.5416983197.

Adding to 223142343 its reverse (343241322), we get a palindrome (566383665).

The spelling of 223142343 in words is "two hundred twenty-three million, one hundred forty-two thousand, three hundred forty-three".

Divisors: 1 3 23 69 113 339 2599 7797 28619 85857 658237 1974711 3233947 9701841 74380781 223142343