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13984843 = 67208729
BaseRepresentation
bin110101010110…
…010001001011
3222022111121011
4311112101023
512040003333
61215424351
7226604065
oct65262113
928274534
1013984843
117992024
1248250b7
132b88572
141c00735
1513639cd
hexd5644b

13984843 has 4 divisors (see below), whose sum is σ = 14193640. Its totient is φ = 13776048.

The previous prime is 13984819. The next prime is 13984849. The reversal of 13984843 is 34848931.

13984843 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13984843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13984796 and 13984805.

It is not an unprimeable number, because it can be changed into a prime (13984849) 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, 104298 + ... + 104431.

It is an arithmetic number, because the mean of its divisors is an integer number (3548410).

Almost surely, 213984843 is an apocalyptic number.

13984843 is a deficient number, since it is larger than the sum of its proper divisors (208797).

13984843 is an equidigital number, since it uses as much as digits as its factorization.

13984843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208796.

The product of its digits is 82944, while the sum is 40.

The square root of 13984843 is about 3739.6313989483. The cubic root of 13984843 is about 240.9272175666.

It can be divided in two parts, 1398 and 4843, that added together give a square (6241 = 792).

The spelling of 13984843 in words is "thirteen million, nine hundred eighty-four thousand, eight hundred forty-three".

Divisors: 1 67 208729 13984843