Search a number
-
+
6878430460135 = 513531996641643
BaseRepresentation
bin110010000011000001001…
…1001110111100011100111
3220100120102122102110221201
41210012002121313203213
51400144011144211020
622343523552223331
71306643630140633
oct144060231674347
926316378373851
106878430460135
112212142746743
1293110453ab47
133ab830211a60
1419acbc687dc3
15bddcca64a0a
hex641826778e7

6878430460135 has 16 divisors (see below), whose sum is σ = 9056766497184. Its totient is φ = 4983617538432.

The previous prime is 6878430460133. The next prime is 6878430460141. The reversal of 6878430460135 is 5310640348786.

It is not a de Polignac number, because 6878430460135 - 21 = 6878430460133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6878430460133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 998317377 + ... + 998324266.

It is an arithmetic number, because the mean of its divisors is an integer number (566047906074).

Almost surely, 26878430460135 is an apocalyptic number.

6878430460135 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6878430460135 is a deficient number, since it is larger than the sum of its proper divisors (2178336037049).

6878430460135 is a wasteful number, since it uses less digits than its factorization.

6878430460135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996641714.

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 6878430460135 in words is "six trillion, eight hundred seventy-eight billion, four hundred thirty million, four hundred sixty thousand, one hundred thirty-five".

Divisors: 1 5 13 53 65 265 689 3445 1996641643 9983208215 25956341359 105822007079 129781706795 529110035395 1375686092027 6878430460135