Search a number
-
+
13201418 = 217388277
BaseRepresentation
bin110010010111…
…000000001010
3220211200221102
4302113000022
511334421133
61150541402
7220132046
oct62270012
926750842
1013201418
1174a746a
124507862
132972ab9
141a79026
15125b7e8
hexc9700a

13201418 has 8 divisors (see below), whose sum is σ = 20967012. Its totient is φ = 6212416.

The previous prime is 13201417. The next prime is 13201421. The reversal of 13201418 is 81410231.

It can be written as a sum of positive squares in 2 ways, for example, as 13010449 + 190969 = 3607^2 + 437^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 13201418.

It is not an unprimeable number, because it can be changed into a prime (13201411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194105 + ... + 194172.

Almost surely, 213201418 is an apocalyptic number.

13201418 is a deficient number, since it is larger than the sum of its proper divisors (7765594).

13201418 is a wasteful number, since it uses less digits than its factorization.

13201418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388296.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 13201418 is about 3633.3755655038. The cubic root of 13201418 is about 236.3416124270.

Adding to 13201418 its reverse (81410231), we get a palindrome (94611649).

The spelling of 13201418 in words is "thirteen million, two hundred one thousand, four hundred eighteen".

Divisors: 1 2 17 34 388277 776554 6600709 13201418