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213320211 = 3135469749
BaseRepresentation
bin11001011011100…
…00001000010011
3112212101210022120
430231300020103
5414102221321
633100105323
75200122546
oct1455601023
9485353276
10213320211
11aa4606a5
125b535243
133526c1a0
142048c85d
1513adaec6
hexcb70213

213320211 has 8 divisors (see below), whose sum is σ = 306306000. Its totient is φ = 131273952.

The previous prime is 213320203. The next prime is 213320257. The reversal of 213320211 is 112023312.

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

It is not a de Polignac number, because 213320211 - 23 = 213320203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213320311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2734836 + ... + 2734913.

It is an arithmetic number, because the mean of its divisors is an integer number (38288250).

Almost surely, 2213320211 is an apocalyptic number.

213320211 is a deficient number, since it is larger than the sum of its proper divisors (92985789).

213320211 is a wasteful number, since it uses less digits than its factorization.

213320211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5469765.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 213320211 is about 14605.4856475230. The cubic root of 213320211 is about 597.5083812716.

Adding to 213320211 its reverse (112023312), we get a palindrome (325343523).

It can be divided in two parts, 213320 and 211, that added together give a triangular number (213531 = T653).

The spelling of 213320211 in words is "two hundred thirteen million, three hundred twenty thousand, two hundred eleven".

Divisors: 1 3 13 39 5469749 16409247 71106737 213320211