Search a number
-
+
12886145 = 57136299
BaseRepresentation
bin110001001010…
…000010000001
3220020200110122
4301022002001
511244324040
61140110025
7214346636
oct61120201
926220418
1012886145
117301608
124395315
13289244c
1419d618d
1511e81b5
hexc4a081

12886145 has 8 divisors (see below), whose sum is σ = 15681600. Its totient is φ = 10163440.

The previous prime is 12886129. The next prime is 12886151. The reversal of 12886145 is 54168821.

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

It is not a de Polignac number, because 12886145 - 24 = 12886129 is a prime.

It is a super-2 number, since 2×128861452 = 332105465922050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17795 + ... + 18504.

It is an arithmetic number, because the mean of its divisors is an integer number (1960200).

Almost surely, 212886145 is an apocalyptic number.

It is an amenable number.

12886145 is a deficient number, since it is larger than the sum of its proper divisors (2795455).

12886145 is an equidigital number, since it uses as much as digits as its factorization.

12886145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36375.

The product of its digits is 15360, while the sum is 35.

The square root of 12886145 is about 3589.7277055509. The cubic root of 12886145 is about 234.4450160002.

It can be divided in two parts, 12886 and 145, that added together give a palindrome (13031).

The spelling of 12886145 in words is "twelve million, eight hundred eighty-six thousand, one hundred forty-five".

Divisors: 1 5 71 355 36299 181495 2577229 12886145