Base | Representation |
---|---|
bin | 111011110111101100… |
… | …111001110101010011 |
3 | 20010221011002212121222 |
4 | 323313230321311103 |
5 | 2023124013120330 |
6 | 45310544435255 |
7 | 4434022625030 |
oct | 736754716523 |
9 | 203834085558 |
10 | 64285285715 |
11 | 25299405702 |
12 | 10561018b2b |
13 | 60a64c7101 |
14 | 317ba6a387 |
15 | 1a13a7c0e5 |
hex | ef7b39d53 |
64285285715 has 36 divisors (see below), whose sum is σ = 93690942768. Its totient is φ = 41471861760.
The previous prime is 64285285697. The next prime is 64285285721. The reversal of 64285285715 is 51758258246.
It is a happy number.
It is not a de Polignac number, because 64285285715 - 232 = 59990318419 is a prime.
It is a super-2 number, since 2×642852857152 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25498655 + ... + 25501175.
It is an arithmetic number, because the mean of its divisors is an integer number (2602526188).
Almost surely, 264285285715 is an apocalyptic number.
64285285715 is a deficient number, since it is larger than the sum of its proper divisors (29405657053).
64285285715 is an frugal number, since it uses more digits than its factorization.
64285285715 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5088 (or 2550 counting only the distinct ones).
The product of its digits is 5376000, while the sum is 53.
The spelling of 64285285715 in words is "sixty-four billion, two hundred eighty-five million, two hundred eighty-five thousand, seven hundred fifteen".
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