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12230065 = 52446013
BaseRepresentation
bin101110101001…
…110110110001
3212000100111101
4232221312301
511112330230
61114044401
7205645111
oct56516661
925010441
1012230065
1169a36a1
124119701
1326c2933
1418a5041
151118aca
hexba9db1

12230065 has 4 divisors (see below), whose sum is σ = 14676084. Its totient is φ = 9784048.

The previous prime is 12230063. The next prime is 12230077. The reversal of 12230065 is 56003221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56003221 = 101954959.

It can be written as a sum of positive squares in 2 ways, for example, as 3415104 + 8814961 = 1848^2 + 2969^2 .

It is a cyclic number.

It is not a de Polignac number, because 12230065 - 21 = 12230063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12230063) 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, 1223002 + ... + 1223011.

It is an arithmetic number, because the mean of its divisors is an integer number (3669021).

Almost surely, 212230065 is an apocalyptic number.

It is an amenable number.

12230065 is a deficient number, since it is larger than the sum of its proper divisors (2446019).

12230065 is an equidigital number, since it uses as much as digits as its factorization.

12230065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2446018.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 12230065 is about 3497.1509833005. The cubic root of 12230065 is about 230.3967003872.

Adding to 12230065 its reverse (56003221), we get a palindrome (68233286).

The spelling of 12230065 in words is "twelve million, two hundred thirty thousand, sixty-five".

Divisors: 1 5 2446013 12230065