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223138932 = 223147112641
BaseRepresentation
bin11010100110011…
…01010001110100
3120112212122001220
431103031101310
5424110421212
634050350340
75346435552
oct1523152164
9515778056
10223138932
11104a57645
126288b3b0
13372c9393
14218c6bd2
15148ca38c
hexd4cd474

223138932 has 24 divisors (see below), whose sum is σ = 521052672. Its totient is φ = 74323200.

The previous prime is 223138921. The next prime is 223138967. The reversal of 223138932 is 239831322.

223138932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2231389323 (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223138893 and 223138902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11332 + ... + 23972.

It is an arithmetic number, because the mean of its divisors is an integer number (21710528).

Almost surely, 2223138932 is an apocalyptic number.

It is an amenable number.

223138932 is an abundant number, since it is smaller than the sum of its proper divisors (297913740).

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

223138932 is a wasteful number, since it uses less digits than its factorization.

223138932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14119 (or 14117 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 223138932 is about 14937.8355861885. The cubic root of 223138932 is about 606.5386077301.

The spelling of 223138932 in words is "two hundred twenty-three million, one hundred thirty-eight thousand, nine hundred thirty-two".

Divisors: 1 2 3 4 6 12 1471 2942 4413 5884 8826 12641 17652 25282 37923 50564 75846 151692 18594911 37189822 55784733 74379644 111569466 223138932