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211232214 = 23212319533
BaseRepresentation
bin11001001011100…
…10010111010110
3112201110201010100
430211302113112
5413033412324
632543234530
75143305234
oct1445622726
9481421110
10211232214
11a9264986
125a8a8a46
13349ba99b
14200a7954
15138274c9
hexc9725d6

211232214 has 24 divisors (see below), whose sum is σ = 458089632. Its totient is φ = 70346160.

The previous prime is 211232209. The next prime is 211232243. The reversal of 211232214 is 412232112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17392 + ... + 26924.

It is an arithmetic number, because the mean of its divisors is an integer number (19087068).

Almost surely, 2211232214 is an apocalyptic number.

211232214 is an abundant number, since it is smaller than the sum of its proper divisors (246857418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211232214 is a wasteful number, since it uses less digits than its factorization.

211232214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10772 (or 10769 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 211232214 is about 14533.8299838687. The cubic root of 211232214 is about 595.5524976612.

Adding to 211232214 its reverse (412232112), we get a palindrome (623464326).

The spelling of 211232214 in words is "two hundred eleven million, two hundred thirty-two thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 1231 2462 3693 7386 9533 11079 19066 22158 28599 57198 85797 171594 11735123 23470246 35205369 70410738 105616107 211232214