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32022013 = 67347581

32022013 has 4 divisors (see below), whose sum is σ = 32070268. Its totient is φ = 31973760.

The previous prime is 32021989. The next prime is 32022059. The reversal of 32022013 is 31022023.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16990884 + 15031129 = 4122^2 + 3877^2 .

It is a cyclic number.

It is not a de Polignac number, because 32022013 - 29 = 32021501 is a prime.

It is a super-3 number, since 3×320220133 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 32021984 and 32022002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32020013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23118 + ... + 24463.

It is an arithmetic number, because the mean of its divisors is an integer number (8017567).

Almost surely, 232022013 is an apocalyptic number.

It is an amenable number.

32022013 is a deficient number, since it is larger than the sum of its proper divisors (48255).

32022013 is an equidigital number, since it uses as much as digits as its factorization.

32022013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48254.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 32022013 is about 5658.7996076907. The cubic root of 32022013 is about 317.5529925807.

Adding to 32022013 its reverse (31022023), we get a palindrome (63044036).

The spelling of 32022013 in words is "thirty-two million, twenty-two thousand, thirteen".

Divisors: 1 673 47581 32022013