Search a number
-
+
12853145 = 56613889
BaseRepresentation
bin110001000001…
…111110011001
3220012000012102
4301001332121
511242300040
61135253145
7214151504
oct61017631
926160172
1012853145
117289838
12437a1b5
132880416
1419c813b
1511dd515
hexc41f99

12853145 has 8 divisors (see below), whose sum is σ = 15451080. Its totient is φ = 10264320.

The previous prime is 12853133. The next prime is 12853147. The reversal of 12853145 is 54135821.

12853145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4044121 + 8809024 = 2011^2 + 2968^2 .

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

It is not a de Polignac number, because 12853145 - 24 = 12853129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12853147) 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, 1361 + ... + 5249.

It is an arithmetic number, because the mean of its divisors is an integer number (1931385).

Almost surely, 212853145 is an apocalyptic number.

It is an amenable number.

12853145 is a deficient number, since it is larger than the sum of its proper divisors (2597935).

12853145 is an equidigital number, since it uses as much as digits as its factorization.

12853145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4555.

The product of its digits is 4800, while the sum is 29.

The square root of 12853145 is about 3585.1283101167. The cubic root of 12853145 is about 234.2447156206.

Adding to 12853145 its reverse (54135821), we get a palindrome (66988966).

The spelling of 12853145 in words is "twelve million, eight hundred fifty-three thousand, one hundred forty-five".

Divisors: 1 5 661 3305 3889 19445 2570629 12853145