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68726877273 = 3319133970521
BaseRepresentation
bin100000000000001110…
…0001110110001011001
320120101200202002211000
41000000130032301121
52111223040033043
651323411255213
74652054550405
oct1000034166131
9216350662730
1068726877273
112716859212a
12113a05aa509
1366337601b2
14347d8d0105
151bc397e2d3
hex100070ec59

68726877273 has 16 divisors (see below), whose sum is σ = 107176417600. Its totient is φ = 43406448480.

The previous prime is 68726877257. The next prime is 68726877283. The reversal of 68726877273 is 37277862786.

It is not a de Polignac number, because 68726877273 - 24 = 68726877257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68726877273.

It is not an unprimeable number, because it can be changed into a prime (68726877203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66984748 + ... + 66985773.

It is an arithmetic number, because the mean of its divisors is an integer number (6698526100).

Almost surely, 268726877273 is an apocalyptic number.

It is an amenable number.

68726877273 is a deficient number, since it is larger than the sum of its proper divisors (38449540327).

68726877273 is a wasteful number, since it uses less digits than its factorization.

68726877273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133970549 (or 133970543 counting only the distinct ones).

The product of its digits is 66382848, while the sum is 63.

The spelling of 68726877273 in words is "sixty-eight billion, seven hundred twenty-six million, eight hundred seventy-seven thousand, two hundred seventy-three".

Divisors: 1 3 9 19 27 57 171 513 133970521 401911563 1205734689 2545439899 3617204067 7636319697 22908959091 68726877273