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23206061 = 29800209
BaseRepresentation
bin101100010000…
…1100010101101
31121122222201202
41120201202231
521420043221
62145215245
7401151104
oct130414255
947588652
1023206061
111211006a
127931525
134a667c8
14312103b
152085d0b
hex16218ad

23206061 has 4 divisors (see below), whose sum is σ = 24006300. Its totient is φ = 22405824.

The previous prime is 23206039. The next prime is 23206081. The reversal of 23206061 is 16060232.

23206061 is nontrivially palindromic in base 7.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14969161 + 8236900 = 3869^2 + 2870^2 .

It is a cyclic number.

It is not a de Polignac number, because 23206061 - 218 = 22943917 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 (23206021) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 400076 + ... + 400133.

It is an arithmetic number, because the mean of its divisors is an integer number (6001575).

Almost surely, 223206061 is an apocalyptic number.

It is an amenable number.

23206061 is a deficient number, since it is larger than the sum of its proper divisors (800239).

23206061 is an equidigital number, since it uses as much as digits as its factorization.

23206061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800238.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 23206061 is about 4817.2669637461. The cubic root of 23206061 is about 285.2334641841.

Adding to 23206061 its reverse (16060232), we get a palindrome (39266293).

The spelling of 23206061 in words is "twenty-three million, two hundred six thousand, sixty-one".

Divisors: 1 29 800209 23206061