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3220132213 = 17318613481
BaseRepresentation
bin1011111111101111…
…0101000101110101
322022102020122222001
42333323311011311
523043323212323
61251310335301
7142540446364
oct27773650565
98272218861
103220132213
111402753aa1
1275a4ba531
133c419a19c
142279497db
1513ca783ad
hexbfef5175

3220132213 has 4 divisors (see below), whose sum is σ = 3238745868. Its totient is φ = 3201518560.

The previous prime is 3220132211. The next prime is 3220132219. The reversal of 3220132213 is 3122310223.

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 1160969329 + 2059162884 = 34073^2 + 45378^2 .

It is a cyclic number.

It is not a de Polignac number, because 3220132213 - 21 = 3220132211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220132211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9306568 + ... + 9306913.

It is an arithmetic number, because the mean of its divisors is an integer number (809686467).

Almost surely, 23220132213 is an apocalyptic number.

It is an amenable number.

3220132213 is a deficient number, since it is larger than the sum of its proper divisors (18613655).

3220132213 is a wasteful number, since it uses less digits than its factorization.

3220132213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18613654.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 3220132213 is about 56746.2087984739. The cubic root of 3220132213 is about 1476.6964624013.

Adding to 3220132213 its reverse (3122310223), we get a palindrome (6342442436).

The spelling of 3220132213 in words is "three billion, two hundred twenty million, one hundred thirty-two thousand, two hundred thirteen".

Divisors: 1 173 18613481 3220132213