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230320211 = 1120938201
BaseRepresentation
bin11011011101001…
…10100001010011
3121001101110221012
431232212201103
5432430221321
634504321135
75464455332
oct1556464123
9531343835
10230320211
11109011a90
12651731ab
1338941c64
1422835d19
151534805b
hexdba6853

230320211 has 4 divisors (see below), whose sum is σ = 251258424. Its totient is φ = 209382000.

The previous prime is 230320187. The next prime is 230320213. The reversal of 230320211 is 112023032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230320211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230320213) 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, 10469090 + ... + 10469111.

It is an arithmetic number, because the mean of its divisors is an integer number (62814606).

Almost surely, 2230320211 is an apocalyptic number.

230320211 is a deficient number, since it is larger than the sum of its proper divisors (20938213).

230320211 is a wasteful number, since it uses less digits than its factorization.

230320211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20938212.

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

The square root of 230320211 is about 15176.3042602605. The cubic root of 230320211 is about 612.9767703098.

Adding to 230320211 its reverse (112023032), we get a palindrome (342343243).

The spelling of 230320211 in words is "two hundred thirty million, three hundred twenty thousand, two hundred eleven".

Divisors: 1 11 20938201 230320211