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212101313 = 19101110527
BaseRepresentation
bin11001010010001…
…10100011000001
3112210002212022012
430221012203001
5413244220223
633014022305
75153555114
oct1451064301
9483085265
10212101313
11a97a8946
125b047995
1334c33448
142025257b
1513949c78
hexca468c1

212101313 has 8 divisors (see below), whose sum is σ = 225477120. Its totient is φ = 198946800.

The previous prime is 212101301. The next prime is 212101319. The reversal of 212101313 is 313101212.

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 212101313 - 26 = 212101249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212101319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53345 + ... + 57182.

It is an arithmetic number, because the mean of its divisors is an integer number (28184640).

Almost surely, 2212101313 is an apocalyptic number.

It is an amenable number.

212101313 is a deficient number, since it is larger than the sum of its proper divisors (13375807).

212101313 is a wasteful number, since it uses less digits than its factorization.

212101313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110647.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 212101313 is about 14563.6984657057. The cubic root of 212101313 is about 596.3681652801.

Adding to 212101313 its reverse (313101212), we get a palindrome (525202525).

The spelling of 212101313 in words is "two hundred twelve million, one hundred one thousand, three hundred thirteen".

Divisors: 1 19 101 1919 110527 2100013 11163227 212101313