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223422243 = 31137414463
BaseRepresentation
bin11010101000100…
…10011100100011
3120120102000200220
431110102130203
5424144002433
634100414123
75352025542
oct1524223443
9516360626
10223422243
11105130490
12629a7343
1337398315
142195c159
15149342b3
hexd512723

223422243 has 32 divisors (see below), whose sum is σ = 341978112. Its totient is φ = 128505600.

The previous prime is 223422229. The next prime is 223422259. The reversal of 223422243 is 342224322.

It is a happy number.

It is not a de Polignac number, because 223422243 - 224 = 206645027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223422223) 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 31 ways as a sum of consecutive naturals, for example, 47830 + ... + 52292.

It is an arithmetic number, because the mean of its divisors is an integer number (10686816).

Almost surely, 2223422243 is an apocalyptic number.

223422243 is a deficient number, since it is larger than the sum of its proper divisors (118555869).

223422243 is a wasteful number, since it uses less digits than its factorization.

223422243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4555.

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

The square root of 223422243 is about 14947.3155783907. The cubic root of 223422243 is about 606.7951988194.

Adding to 223422243 its reverse (342224322), we get a palindrome (565646565).

The spelling of 223422243 in words is "two hundred twenty-three million, four hundred twenty-two thousand, two hundred forty-three".

Divisors: 1 3 11 33 37 41 111 123 407 451 1221 1353 1517 4463 4551 13389 16687 49093 50061 147279 165131 182983 495393 548949 1816441 2012813 5449323 6038439 6770371 20311113 74474081 223422243