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12798893 = 19764969
BaseRepresentation
bin110000110100…
…101110101101
3220002020210002
4300310232231
511234031033
61134154045
7213534362
oct60645655
926066702
1012798893
117251aa8
124352925
132861813
1419b2469
1511cc3e8
hexc34bad

12798893 has 4 divisors (see below), whose sum is σ = 12864060. Its totient is φ = 12733728.

The previous prime is 12798887. The next prime is 12798901. The reversal of 12798893 is 39889721.

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 8076964 + 4721929 = 2842^2 + 2173^2 .

It is a cyclic number.

It is not a de Polignac number, because 12798893 - 26 = 12798829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12798853) 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, 32288 + ... + 32681.

It is an arithmetic number, because the mean of its divisors is an integer number (3216015).

Almost surely, 212798893 is an apocalyptic number.

It is an amenable number.

12798893 is a deficient number, since it is larger than the sum of its proper divisors (65167).

12798893 is an equidigital number, since it uses as much as digits as its factorization.

12798893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65166.

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

The square root of 12798893 is about 3577.5540527014. The cubic root of 12798893 is about 233.9146753467.

The spelling of 12798893 in words is "twelve million, seven hundred ninety-eight thousand, eight hundred ninety-three".

Divisors: 1 197 64969 12798893