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13065447 = 310342283
BaseRepresentation
bin110001110101…
…110011100111
3220120210102110
4301311303213
511321043242
61144012103
7216024453
oct61656347
926523373
1013065447
11741429a
124461033
132925c45
141a41663
15123139c
hexc75ce7

13065447 has 8 divisors (see below), whose sum is σ = 17590144. Its totient is φ = 8625528.

The previous prime is 13065443. The next prime is 13065463. The reversal of 13065447 is 74456031.

13065447 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13065447 - 22 = 13065443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13065443) 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, 20833 + ... + 21450.

It is an arithmetic number, because the mean of its divisors is an integer number (2198768).

Almost surely, 213065447 is an apocalyptic number.

13065447 is a deficient number, since it is larger than the sum of its proper divisors (4524697).

13065447 is a wasteful number, since it uses less digits than its factorization.

13065447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42389.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 13065447 is about 3614.6157472130. The cubic root of 13065447 is about 235.5273925611.

The spelling of 13065447 in words is "thirteen million, sixty-five thousand, four hundred forty-seven".

Divisors: 1 3 103 309 42283 126849 4355149 13065447