Search a number
-
+
13144827 = 319230611
BaseRepresentation
bin110010001001…
…001011111011
3220201211022110
4302021023323
511331113302
61145423403
7216505053
oct62111373
926654273
1013144827
1174689a3
12449ab63
132953107
141a62563
151249b6c
hexc892fb

13144827 has 8 divisors (see below), whose sum is σ = 18448960. Its totient is φ = 8301960.

The previous prime is 13144823. The next prime is 13144841. The reversal of 13144827 is 72844131.

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

It is not a de Polignac number, because 13144827 - 22 = 13144823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13144794 and 13144803.

It is not an unprimeable number, because it can be changed into a prime (13144823) 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, 115249 + ... + 115362.

It is an arithmetic number, because the mean of its divisors is an integer number (2306120).

Almost surely, 213144827 is an apocalyptic number.

13144827 is a deficient number, since it is larger than the sum of its proper divisors (5304133).

13144827 is a wasteful number, since it uses less digits than its factorization.

13144827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230633.

The product of its digits is 5376, while the sum is 30.

The square root of 13144827 is about 3625.5795398805. The cubic root of 13144827 is about 236.0034173114.

Adding to 13144827 its reverse (72844131), we get a palindrome (85988958).

The spelling of 13144827 in words is "thirteen million, one hundred forty-four thousand, eight hundred twenty-seven".

Divisors: 1 3 19 57 230611 691833 4381609 13144827