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212224313 = 7301110069
BaseRepresentation
bin11001010011001…
…00100100111001
3112210100010000202
430221210210321
5413312134223
633020411545
75154606530
oct1451444471
9483303022
10212224313
11a98822a4
125b0a6bb5
1334c77422
1420285317
1513971428
hexca64939

212224313 has 8 divisors (see below), whose sum is σ = 242646720. Its totient is φ = 181828080.

The previous prime is 212224301. The next prime is 212224321. The reversal of 212224313 is 313422212.

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

It is not a de Polignac number, because 212224313 - 26 = 212224249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212224613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16043 + ... + 26111.

It is an arithmetic number, because the mean of its divisors is an integer number (30330840).

Almost surely, 2212224313 is an apocalyptic number.

It is an amenable number.

212224313 is a deficient number, since it is larger than the sum of its proper divisors (30422407).

212224313 is a wasteful number, since it uses less digits than its factorization.

212224313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13087.

The product of its digits is 576, while the sum is 20.

The square root of 212224313 is about 14567.9206821015. The cubic root of 212224313 is about 596.4834232644.

Adding to 212224313 its reverse (313422212), we get a palindrome (525646525).

The spelling of 212224313 in words is "two hundred twelve million, two hundred twenty-four thousand, three hundred thirteen".

Divisors: 1 7 3011 10069 21077 70483 30317759 212224313