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123230313 = 3237370061
BaseRepresentation
bin1110101100001…
…01100001101001
322120212202012200
413112011201221
5223021332223
620121130413
73024304023
oct726054151
9276782180
10123230313
1163618838
1235329a09
131c6b835b
141251b013
15ac42a43
hex7585869

123230313 has 12 divisors (see below), whose sum is σ = 182810628. Its totient is φ = 79932960.

The previous prime is 123230299. The next prime is 123230321. The reversal of 123230313 is 313032321.

123230313 is a `hidden beast` number, since 123 + 230 + 313 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 61261929 + 61968384 = 7827^2 + 7872^2 .

It is not a de Polignac number, because 123230313 - 26 = 123230249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123230323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184698 + ... + 185363.

It is an arithmetic number, because the mean of its divisors is an integer number (15234219).

Almost surely, 2123230313 is an apocalyptic number.

It is an amenable number.

123230313 is a deficient number, since it is larger than the sum of its proper divisors (59580315).

123230313 is a wasteful number, since it uses less digits than its factorization.

123230313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370104 (or 370101 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 123230313 is about 11100.9149622903. The cubic root of 123230313 is about 497.6291936554.

Adding to 123230313 its reverse (313032321), we get a palindrome (436262634).

The spelling of 123230313 in words is "one hundred twenty-three million, two hundred thirty thousand, three hundred thirteen".

Divisors: 1 3 9 37 111 333 370061 1110183 3330549 13692257 41076771 123230313