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210232231220113 = 409514015235257
BaseRepresentation
bin101111110011010010000001…
…011101100101001110010001
31000120101000010122212121212021
4233303102001131211032101
5210023421102143020423
62023043204223331441
762165530446533644
oct5763220135451621
91016330118777767
10210232231220113
1160a93a96865263
121b6b44b8a50b81
13903ca7814143b
1439cb419725a5b
151948951db795d
hexbf3481765391

210232231220113 has 4 divisors (see below), whose sum is σ = 210746246455780. Its totient is φ = 209718215984448.

The previous prime is 210232231220101. The next prime is 210232231220129. The reversal of 210232231220113 is 311022132232012.

210232231220113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 154132026360064 + 56100204860049 = 12414992^2 + 7490007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-210232231220113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210232231220173) 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, 257007617220 + ... + 257007618037.

It is an arithmetic number, because the mean of its divisors is an integer number (52686561613945).

Almost surely, 2210232231220113 is an apocalyptic number.

It is an amenable number.

210232231220113 is a deficient number, since it is larger than the sum of its proper divisors (514015235667).

210232231220113 is an equidigital number, since it uses as much as digits as its factorization.

210232231220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514015235666.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 210232231220113 its reverse (311022132232012), we get a palindrome (521254363452125).

The spelling of 210232231220113 in words is "two hundred ten trillion, two hundred thirty-two billion, two hundred thirty-one million, two hundred twenty thousand, one hundred thirteen".

Divisors: 1 409 514015235257 210232231220113