Search a number
-
+
5218135 = 51380279
BaseRepresentation
bin10011111001111101010111
3100211002221021
4103321331113
52313440020
6303502011
762232136
oct23717527
910732837
105218135
112a4450a
1218b7907
131109170
1499b91d
156d11aa
hex4f9f57

5218135 has 8 divisors (see below), whose sum is σ = 6743520. Its totient is φ = 3853344.

The previous prime is 5218121. The next prime is 5218139. The reversal of 5218135 is 5318125.

It is a happy number.

5218135 is digitally balanced in base 3, 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 5218135 - 213 = 5209943 is a prime.

5218135 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5218139) 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, 40075 + ... + 40204.

It is an arithmetic number, because the mean of its divisors is an integer number (842940).

Almost surely, 25218135 is an apocalyptic number.

5218135 is a deficient number, since it is larger than the sum of its proper divisors (1525385).

5218135 is a wasteful number, since it uses less digits than its factorization.

5218135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80297.

The product of its digits is 1200, while the sum is 25.

The square root of 5218135 is about 2284.3237511351. The cubic root of 5218135 is about 173.4489879846.

The spelling of 5218135 in words is "five million, two hundred eighteen thousand, one hundred thirty-five".

Divisors: 1 5 13 65 80279 401395 1043627 5218135