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209832214 = 21371814231
BaseRepresentation
bin11001000000111…
…00100100010110
3112121211120200111
430200130210112
5412204112324
632453233234
75125354504
oct1440344426
9477746614
10209832214
11a8499059
125a33281a
133461a697
141dc21674
151364c794
hexc81c916

209832214 has 16 divisors (see below), whose sum is σ = 318872736. Its totient is φ = 103550400.

The previous prime is 209832199. The next prime is 209832221. The reversal of 209832214 is 412238902.

It is a congruent number.

It is an unprimeable number.

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, 47479 + ... + 51709.

It is an arithmetic number, because the mean of its divisors is an integer number (19929546).

Almost surely, 2209832214 is an apocalyptic number.

209832214 is a deficient number, since it is larger than the sum of its proper divisors (109040522).

209832214 is a wasteful number, since it uses less digits than its factorization.

209832214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4551.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 209832214 is about 14485.5864223717. The cubic root of 209832214 is about 594.2338504166.

The spelling of 209832214 in words is "two hundred nine million, eight hundred thirty-two thousand, two hundred fourteen".

Divisors: 1 2 137 181 274 362 4231 8462 24797 49594 579647 765811 1159294 1531622 104916107 209832214