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13244918 = 223287933
BaseRepresentation
bin110010100001…
…100111110110
3220220220121112
4302201213312
511342314133
61151515022
7220402631
oct62414766
926826545
1013244918
117527115
124528a72
13298983b
141a8ac18
151269648
hexca19f6

13244918 has 8 divisors (see below), whose sum is σ = 20731248. Its totient is φ = 6334504.

The previous prime is 13244911. The next prime is 13244923. The reversal of 13244918 is 81944231.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13244911) 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, 143921 + ... + 144012.

It is an arithmetic number, because the mean of its divisors is an integer number (2591406).

Almost surely, 213244918 is an apocalyptic number.

13244918 is a deficient number, since it is larger than the sum of its proper divisors (7486330).

13244918 is a wasteful number, since it uses less digits than its factorization.

13244918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287958.

The product of its digits is 6912, while the sum is 32.

The square root of 13244918 is about 3639.3568113061. The cubic root of 13244918 is about 236.6009176171.

The spelling of 13244918 in words is "thirteen million, two hundred forty-four thousand, nine hundred eighteen".

Divisors: 1 2 23 46 287933 575866 6622459 13244918