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210230213 = 856324551
BaseRepresentation
bin11001000011111…
…01101111000101
3112122120210122012
430201331233011
5412304331323
632505544005
75131633034
oct1441755705
9478523565
10210230213
11a8740086
125a4a5005
133472989b
141dcc671b
15136ca678
hexc87dbc5

210230213 has 4 divisors (see below), whose sum is σ = 210263328. Its totient is φ = 210197100.

The previous prime is 210230161. The next prime is 210230227. The reversal of 210230213 is 312032012.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210230213 - 26 = 210230149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210230113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3713 + ... + 20838.

It is an arithmetic number, because the mean of its divisors is an integer number (52565832).

Almost surely, 2210230213 is an apocalyptic number.

It is an amenable number.

210230213 is a deficient number, since it is larger than the sum of its proper divisors (33115).

210230213 is an equidigital number, since it uses as much as digits as its factorization.

210230213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33114.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 210230213 is about 14499.3176736011. The cubic root of 210230213 is about 594.6093172419.

Adding to 210230213 its reverse (312032012), we get a palindrome (522262225).

The spelling of 210230213 in words is "two hundred ten million, two hundred thirty thousand, two hundred thirteen".

Divisors: 1 8563 24551 210230213