Base | Representation |
---|---|
bin | 111111111111111111… |
… | …111111111111111100 |
3 | 20120101011211010011220 |
4 | 333333333333333330 |
5 | 2111214141223412 |
6 | 51322544513340 |
7 | 4651634625444 |
oct | 777777777774 |
9 | 216334733156 |
10 | 68719476732 |
11 | 27164397a85 |
12 | 1139a01b850 |
13 | 663206b88a |
14 | 347c925124 |
15 | 1bc2ebb68c |
hex | ffffffffc |
68719476732 has 24 divisors (see below), whose sum is σ = 160350339072. Its totient is φ = 22905793200.
The previous prime is 68719476731. The next prime is 68719476767. The reversal of 68719476732 is 23767491786.
It is a nialpdrome in base 2, base 4, base 8 and base 16.
It is a zygodrome in base 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68719476731) 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, 458757 + ... + 589827.
It is an arithmetic number, because the mean of its divisors is an integer number (6681264128).
Almost surely, 268719476732 is an apocalyptic number.
It is an amenable number.
68719476732 is an abundant number, since it is smaller than the sum of its proper divisors (91630862340).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68719476732 is a wasteful number, since it uses less digits than its factorization.
68719476732 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 174769 (or 174767 counting only the distinct ones).
The product of its digits is 21337344, while the sum is 60.
The spelling of 68719476732 in words is "sixty-eight billion, seven hundred nineteen million, four hundred seventy-six thousand, seven hundred thirty-two".
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