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123231041 = 612020181
BaseRepresentation
bin1110101100001…
…01101101000001
322120212210012122
413112011231001
5223021343131
620121134025
73024306113
oct726055501
9276783178
10123231041
116361933a
123532a315
131c6b879b
141251b3b3
15ac42d7b
hex7585b41

123231041 has 4 divisors (see below), whose sum is σ = 125251284. Its totient is φ = 121210800.

The previous prime is 123231037. The next prime is 123231047. The reversal of 123231041 is 140132321.

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 61152400 + 62078641 = 7820^2 + 7879^2 .

It is a cyclic number.

It is not a de Polignac number, because 123231041 - 22 = 123231037 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123231047) 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 3 ways as a sum of consecutive naturals, for example, 1010030 + ... + 1010151.

It is an arithmetic number, because the mean of its divisors is an integer number (31312821).

Almost surely, 2123231041 is an apocalyptic number.

It is an amenable number.

123231041 is a deficient number, since it is larger than the sum of its proper divisors (2020243).

123231041 is an equidigital number, since it uses as much as digits as its factorization.

123231041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020242.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 123231041 is about 11100.9477523318. The cubic root of 123231041 is about 497.6301735911.

Adding to 123231041 its reverse (140132321), we get a palindrome (263363362).

The spelling of 123231041 in words is "one hundred twenty-three million, two hundred thirty-one thousand, forty-one".

Divisors: 1 61 2020181 123231041