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13384109 = 29461521
BaseRepresentation
bin110011000011…
…100110101101
3221011222112202
4303003212231
511411242414
61154511245
7221522504
oct63034655
927158482
1013384109
117611752
124595525
132a07cbb
141ac583b
1512959de
hexcc39ad

13384109 has 4 divisors (see below), whose sum is σ = 13845660. Its totient is φ = 12922560.

The previous prime is 13384099. The next prime is 13384127. The reversal of 13384109 is 90148331.

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 8868484 + 4515625 = 2978^2 + 2125^2 .

It is a cyclic number.

It is not a de Polignac number, because 13384109 - 216 = 13318573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 461521 = 13384109 / (1 + 3 + 3 + 8 + 4 + 1 + 0 + 9).

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 (13314109) 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, 230732 + ... + 230789.

It is an arithmetic number, because the mean of its divisors is an integer number (3461415).

Almost surely, 213384109 is an apocalyptic number.

It is an amenable number.

13384109 is a deficient number, since it is larger than the sum of its proper divisors (461551).

13384109 is an equidigital number, since it uses as much as digits as its factorization.

13384109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461550.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 13384109 is about 3658.4298544594. The cubic root of 13384109 is about 237.4268450591.

The spelling of 13384109 in words is "thirteen million, three hundred eighty-four thousand, one hundred nine".

Divisors: 1 29 461521 13384109