Search a number
-
+
12711745 = 510324683
BaseRepresentation
bin110000011111…
…011101000001
3212220211020101
4300133131001
511223233440
61132242401
7213022324
oct60373501
925824211
1012711745
1171a2582
124310401
132830c57
14198c7bb
1511b169a
hexc1f741

12711745 has 8 divisors (see below), whose sum is σ = 15402816. Its totient is φ = 10070256.

The previous prime is 12711739. The next prime is 12711749. The reversal of 12711745 is 54711721.

12711745 is digitally balanced in base 2, 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 a cyclic number.

It is not a de Polignac number, because 12711745 - 23 = 12711737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12711749) 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, 11827 + ... + 12856.

It is an arithmetic number, because the mean of its divisors is an integer number (1925352).

Almost surely, 212711745 is an apocalyptic number.

It is an amenable number.

12711745 is a deficient number, since it is larger than the sum of its proper divisors (2691071).

12711745 is a wasteful number, since it uses less digits than its factorization.

12711745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24791.

The product of its digits is 1960, while the sum is 28.

The square root of 12711745 is about 3565.3534186669. The cubic root of 12711745 is about 233.3825553754.

It can be divided in two parts, 12711 and 745, that added together give a square (13456 = 1162).

The spelling of 12711745 in words is "twelve million, seven hundred eleven thousand, seven hundred forty-five".

Divisors: 1 5 103 515 24683 123415 2542349 12711745