Search a number
-
+
12418416865 = 521371162229
BaseRepresentation
bin10111001000011001…
…00000000011100001
31012001110102221101101
423210030200003201
5200413103314430
65412133434401
7616511541661
oct134414400341
935043387341
1012418416865
1152a2966438
1224a6a9ba01
13122ba53a7a
1485b4181a1
154ca370dca
hex2e43200e1

12418416865 has 8 divisors (see below), whose sum is σ = 14909086440. Its totient is φ = 9930076032.

The previous prime is 12418416863. The next prime is 12418416869. The reversal of 12418416865 is 56861481421.

It can be written as a sum of positive squares in 4 ways, for example, as 63872064 + 12354544801 = 7992^2 + 111151^2 .

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 12418416865 - 21 = 12418416863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12418416863) 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, 570430 + ... + 591799.

It is an arithmetic number, because the mean of its divisors is an integer number (1863635805).

Almost surely, 212418416865 is an apocalyptic number.

It is an amenable number.

12418416865 is a deficient number, since it is larger than the sum of its proper divisors (2490669575).

12418416865 is a wasteful number, since it uses less digits than its factorization.

12418416865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164371.

The product of its digits is 368640, while the sum is 46.

The spelling of 12418416865 in words is "twelve billion, four hundred eighteen million, four hundred sixteen thousand, eight hundred sixty-five".

Divisors: 1 5 2137 10685 1162229 5811145 2483683373 12418416865