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12237089 = 45726777
BaseRepresentation
bin101110101011…
…100100100001
3212000201010112
4232223210201
511113041324
61114141105
7206004434
oct56534441
925021115
1012237089
1169a89a7
124121795
1326c5ba7
1418a781b
15111ac0e
hexbab921

12237089 has 4 divisors (see below), whose sum is σ = 12264324. Its totient is φ = 12209856.

The previous prime is 12237077. The next prime is 12237091. The reversal of 12237089 is 98073221.

12237089 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 6210064 + 6027025 = 2492^2 + 2455^2 .

It is a cyclic number.

It is not a de Polignac number, because 12237089 - 212 = 12232993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12237019) 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, 12932 + ... + 13845.

It is an arithmetic number, because the mean of its divisors is an integer number (3066081).

Almost surely, 212237089 is an apocalyptic number.

It is an amenable number.

12237089 is a deficient number, since it is larger than the sum of its proper divisors (27235).

12237089 is an equidigital number, since it uses as much as digits as its factorization.

12237089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27234.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 12237089 is about 3498.1550851842. The cubic root of 12237089 is about 230.4407992728.

The spelling of 12237089 in words is "twelve million, two hundred thirty-seven thousand, eighty-nine".

Divisors: 1 457 26777 12237089