Search a number
-
+
13275487 = 172113701
BaseRepresentation
bin110010101001…
…000101011111
3220222110112201
4302221011133
511344303422
61152312331
7220561021
oct62510537
926873481
1013275487
117548085
1245426a7
13299a724
141a98011
151273727
hexca915f

13275487 has 8 divisors (see below), whose sum is σ = 14126832. Its totient is φ = 12432000.

The previous prime is 13275481. The next prime is 13275503. The reversal of 13275487 is 78457231.

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

It is a cyclic number.

It is not a de Polignac number, because 13275487 - 211 = 13273439 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 (13275481) 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 7 ways as a sum of consecutive naturals, for example, 1737 + ... + 5437.

It is an arithmetic number, because the mean of its divisors is an integer number (1765854).

Almost surely, 213275487 is an apocalyptic number.

13275487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13275487 is a deficient number, since it is larger than the sum of its proper divisors (851345).

13275487 is a wasteful number, since it uses less digits than its factorization.

13275487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929.

The product of its digits is 47040, while the sum is 37.

The square root of 13275487 is about 3643.5541714101. The cubic root of 13275487 is about 236.7828011214.

The spelling of 13275487 in words is "thirteen million, two hundred seventy-five thousand, four hundred eighty-seven".

Divisors: 1 17 211 3587 3701 62917 780911 13275487