Search a number
-
+
12998873 = 29974621
BaseRepresentation
bin110001100101…
…100011011001
3220110102002202
4301211203121
511311430443
61142335545
7215326406
oct61454331
926412082
1012998873
117379278
12442a5b5
132901854
141a252ad
15121b7b8
hexc658d9

12998873 has 8 divisors (see below), whose sum is σ = 13588680. Its totient is φ = 12418560.

The previous prime is 12998861. The next prime is 12998903. The reversal of 12998873 is 37889921.

12998873 = 3172 + 3182 + ... + 4132.

12998873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1247689 + 11751184 = 1117^2 + 3428^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12998873 - 26 = 12998809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12998813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503 + ... + 5123.

It is an arithmetic number, because the mean of its divisors is an integer number (1698585).

Almost surely, 212998873 is an apocalyptic number.

It is an amenable number.

12998873 is a deficient number, since it is larger than the sum of its proper divisors (589807).

12998873 is an equidigital number, since it uses as much as digits as its factorization.

12998873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4747.

The product of its digits is 217728, while the sum is 47.

The square root of 12998873 is about 3605.3949852963. The cubic root of 12998873 is about 235.1266738214.

The spelling of 12998873 in words is "twelve million, nine hundred ninety-eight thousand, eight hundred seventy-three".

Divisors: 1 29 97 2813 4621 134009 448237 12998873