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223442430 = 2357448081
BaseRepresentation
bin11010101000101…
…11010111111110
3120120110001101120
431110113113332
5424200124210
634101051410
75352141441
oct1524272776
9516401346
10223442430
11105144672
12629b6b66
13373a4573
1421965658
151493a270
hexd5175fe

223442430 has 16 divisors (see below), whose sum is σ = 536261904. Its totient is φ = 59584640.

The previous prime is 223442393. The next prime is 223442437. The reversal of 223442430 is 34244322.

It is a self number, because there is not a number n which added to its sum of digits gives 223442430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223442437) 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, 3724011 + ... + 3724070.

It is an arithmetic number, because the mean of its divisors is an integer number (33516369).

Almost surely, 2223442430 is an apocalyptic number.

223442430 is an abundant number, since it is smaller than the sum of its proper divisors (312819474).

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

223442430 is a wasteful number, since it uses less digits than its factorization.

223442430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7448091.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 223442430 is about 14947.9908348915. The cubic root of 223442430 is about 606.8134736423.

Adding to 223442430 its reverse (34244322), we get a palindrome (257686752).

The spelling of 223442430 in words is "two hundred twenty-three million, four hundred forty-two thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 7448081 14896162 22344243 37240405 44688486 74480810 111721215 223442430