Search a number
-
+
68713776013 = 194384104989
BaseRepresentation
bin111111111111101010…
…010000001110001101
320120100210002111021011
4333333222100032031
52111211211313023
651322222405221
74651535313331
oct777752201615
9216323074234
1068713776013
1127161153a43
1211398130811
136630b23b7c
14347bc7d7c1
151bc274250d
hexfffa9038d

68713776013 has 8 divisors (see below), whose sum is σ = 74012391200. Its totient is φ = 63583370928.

The previous prime is 68713775947. The next prime is 68713776029. The reversal of 68713776013 is 31067731786.

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 68713776013 - 217 = 68713644941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68713776713) 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, 42051678 + ... + 42053311.

It is an arithmetic number, because the mean of its divisors is an integer number (9251548900).

Almost surely, 268713776013 is an apocalyptic number.

It is an amenable number.

68713776013 is a deficient number, since it is larger than the sum of its proper divisors (5298615187).

68713776013 is a wasteful number, since it uses less digits than its factorization.

68713776013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84105051.

The product of its (nonzero) digits is 889056, while the sum is 49.

The spelling of 68713776013 in words is "sixty-eight billion, seven hundred thirteen million, seven hundred seventy-six thousand, thirteen".

Divisors: 1 19 43 817 84104989 1597994791 3616514527 68713776013