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68004040086 = 2327947822813
BaseRepresentation
bin111111010101010110…
…110100110110010110
320111112022121011121100
4333111112310312112
52103233013240321
651123550330530
74625126542353
oct772526646626
9214468534540
1068004040086
1126927564924
121121a4b9a46
136549a86198
1434118cd62a
151b8029a326
hexfd55b4d96

68004040086 has 24 divisors (see below), whose sum is σ = 149207179680. Its totient is φ = 22381076016.

The previous prime is 68004040061. The next prime is 68004040109.

68004040086 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 68004040086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23909985 + ... + 23912828.

It is an arithmetic number, because the mean of its divisors is an integer number (6216965820).

Almost surely, 268004040086 is an apocalyptic number.

68004040086 is an abundant number, since it is smaller than the sum of its proper divisors (81203139594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68004040086 is a wasteful number, since it uses less digits than its factorization.

68004040086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47822900 (or 47822897 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 68004040086 in words is "sixty-eight billion, four million, forty thousand, eighty-six".

Divisors: 1 2 3 6 9 18 79 158 237 474 711 1422 47822813 95645626 143468439 286936878 430405317 860810634 3778002227 7556004454 11334006681 22668013362 34002020043 68004040086