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223032132 = 22326195337
BaseRepresentation
bin11010100101100…
…11001101000100
3120112200012120100
431102303031010
5424044012012
634044204100
75345512311
oct1522631504
9515605510
10223032132
11104994384
1262839630
133728c89b
1421899d08
15148a88dc
hexd4b3344

223032132 has 18 divisors (see below), whose sum is σ = 563775758. Its totient is φ = 74344032.

The previous prime is 223032113. The next prime is 223032133. The reversal of 223032132 is 231230322.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 201185856 + 21846276 = 14184^2 + 4674^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (223032133) 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 5 ways as a sum of consecutive naturals, for example, 3097633 + ... + 3097704.

Almost surely, 2223032132 is an apocalyptic number.

It is an amenable number.

223032132 is an abundant number, since it is smaller than the sum of its proper divisors (340743626).

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

223032132 is a wasteful number, since it uses less digits than its factorization.

223032132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6195347 (or 6195342 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 223032132 is about 14934.2603432510. The cubic root of 223032132 is about 606.4418239904.

Adding to 223032132 its reverse (231230322), we get a palindrome (454262454).

The spelling of 223032132 in words is "two hundred twenty-three million, thirty-two thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 6195337 12390674 18586011 24781348 37172022 55758033 74344044 111516066 223032132