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213089213 = 2275931583
BaseRepresentation
bin11001011001101…
…11101110111101
3112211222001110002
430230313232331
5414022323323
633051124045
75165141231
oct1454675675
9484861402
10213089213
11aa313097
125b443625
13351bacbc
142042c5c1
1513a92828
hexcb37bbd

213089213 has 8 divisors (see below), whose sum is σ = 214524288. Its totient is φ = 211658944.

The previous prime is 213089207. The next prime is 213089243. The reversal of 213089213 is 312980312.

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 213089213 - 220 = 212040637 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 (213089243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133820 + ... + 135402.

It is an arithmetic number, because the mean of its divisors is an integer number (26815536).

Almost surely, 2213089213 is an apocalyptic number.

It is an amenable number.

213089213 is a deficient number, since it is larger than the sum of its proper divisors (1435075).

213089213 is a wasteful number, since it uses less digits than its factorization.

213089213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 213089213 is about 14597.5755863773. The cubic root of 213089213 is about 597.2926287951.

The spelling of 213089213 in words is "two hundred thirteen million, eighty-nine thousand, two hundred thirteen".

Divisors: 1 227 593 1583 134611 359341 938719 213089213