Base | Representation |
---|---|
bin | 111011111011001011… |
… | …111110100010010000 |
3 | 20011002020010211111121 |
4 | 323323023332202100 |
5 | 2023234000404323 |
6 | 45320434052024 |
7 | 4435332651013 |
oct | 737313764220 |
9 | 204066124447 |
10 | 64343763088 |
11 | 25319416610 |
12 | 1057871a014 |
13 | 60b565ccc7 |
14 | 318572d37a |
15 | 1a18c7da5d |
hex | efb2fe890 |
64343763088 has 80 divisors (see below), whose sum is σ = 139773036096. Its totient is φ = 28436728320.
The previous prime is 64343763067. The next prime is 64343763089. The reversal of 64343763088 is 88036734346.
It is not an unprimeable number, because it can be changed into a prime (64343763089) 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, 13041070 + ... + 13046002.
Almost surely, 264343763088 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 64343763088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69886518048).
64343763088 is an abundant number, since it is smaller than the sum of its proper divisors (75429273008).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64343763088 is a wasteful number, since it uses less digits than its factorization.
64343763088 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6992 (or 6986 counting only the distinct ones).
The product of its (nonzero) digits is 6967296, while the sum is 52.
The spelling of 64343763088 in words is "sixty-four billion, three hundred forty-three million, seven hundred sixty-three thousand, eighty-eight".
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