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12230761 = 50924029
BaseRepresentation
bin101110101010…
…000001101001
3212000101110011
4232222001221
511112341021
61114051521
7205650124
oct56520151
925011404
1012230761
1169a4174
124119ba1
1326c304a
1418a53bb
151118de1
hexbaa069

12230761 has 4 divisors (see below), whose sum is σ = 12255300. Its totient is φ = 12206224.

The previous prime is 12230731. The next prime is 12230789. The reversal of 12230761 is 16703221.

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 11560000 + 670761 = 3400^2 + 819^2 .

It is a cyclic number.

It is not a de Polignac number, because 12230761 - 219 = 11706473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12230711) 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, 11506 + ... + 12523.

It is an arithmetic number, because the mean of its divisors is an integer number (3063825).

Almost surely, 212230761 is an apocalyptic number.

It is an amenable number.

12230761 is a deficient number, since it is larger than the sum of its proper divisors (24539).

12230761 is an equidigital number, since it uses as much as digits as its factorization.

12230761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24538.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 12230761 is about 3497.2504914575. The cubic root of 12230761 is about 230.4010708480.

Adding to 12230761 its reverse (16703221), we get a palindrome (28933982).

The spelling of 12230761 in words is "twelve million, two hundred thirty thousand, seven hundred sixty-one".

Divisors: 1 509 24029 12230761