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213331303 = 1637871663
BaseRepresentation
bin11001011011100…
…10110101100111
3112212102100112101
430231302311213
5414103100203
633100232531
75200200103
oct1455626547
9485370471
10213331303
11aa468a69
125b53b747
1335274253
1420492903
1513ade41d
hexcb72d67

213331303 has 8 divisors (see below), whose sum is σ = 215042048. Its totient is φ = 211625784.

The previous prime is 213331289. The next prime is 213331361. The reversal of 213331303 is 303133312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213331303 - 25 = 213331271 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 (213337303) 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 7 ways as a sum of consecutive naturals, for example, 127450 + ... + 129112.

It is an arithmetic number, because the mean of its divisors is an integer number (26880256).

Almost surely, 2213331303 is an apocalyptic number.

213331303 is a deficient number, since it is larger than the sum of its proper divisors (1710745).

213331303 is a wasteful number, since it uses less digits than its factorization.

213331303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2613.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 213331303 is about 14605.8653629287. The cubic root of 213331303 is about 597.5187372963.

Adding to 213331303 its reverse (303133312), we get a palindrome (516464615).

The spelling of 213331303 in words is "two hundred thirteen million, three hundred thirty-one thousand, three hundred three".

Divisors: 1 163 787 1663 128281 271069 1308781 213331303