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213329087 = 379975783
BaseRepresentation
bin11001011011100…
…10010010111111
3112212102020111022
430231302102333
5414103012322
633100214355
75200160456
oct1455622277
9485366438
10213329087
11aa467334
125b53a3bb
133527323a
1420491b9d
1513add942
hexcb724bf

213329087 has 8 divisors (see below), whose sum is σ = 219352416. Its totient is φ = 207319392.

The previous prime is 213329033. The next prime is 213329089. The reversal of 213329087 is 780923312.

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 213329087 - 28 = 213328831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213329089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33998 + ... + 39780.

It is an arithmetic number, because the mean of its divisors is an integer number (27419052).

Almost surely, 2213329087 is an apocalyptic number.

213329087 is a deficient number, since it is larger than the sum of its proper divisors (6023329).

213329087 is an equidigital number, since it uses as much as digits as its factorization.

213329087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6817.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 213329087 is about 14605.7895027965. The cubic root of 213329087 is about 597.5166683608.

The spelling of 213329087 in words is "two hundred thirteen million, three hundred twenty-nine thousand, eighty-seven".

Divisors: 1 37 997 5783 36889 213971 5765651 213329087