Base | Representation |
---|---|
bin | 111011111000000100… |
… | …100000110011111110 |
3 | 20010221120202022022010 |
4 | 323320010200303332 |
5 | 2023132104142221 |
6 | 45311325232050 |
7 | 4434126342465 |
oct | 737004406376 |
9 | 203846668263 |
10 | 64291474686 |
11 | 252a195255a |
12 | 10563102626 |
13 | 60a788311a |
14 | 317c7db9dc |
15 | 1a143a0c76 |
hex | ef8120cfe |
64291474686 has 8 divisors (see below), whose sum is σ = 128582949384. Its totient is φ = 21430491560.
The previous prime is 64291474679. The next prime is 64291474703. The reversal of 64291474686 is 68647419246.
It is a sphenic number, since it is the product of 3 distinct primes.
64291474686 is an admirable number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5357622885 + ... + 5357622896.
It is an arithmetic number, because the mean of its divisors is an integer number (16072868673).
Almost surely, 264291474686 is an apocalyptic number.
64291474686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64291474686 is a wasteful number, since it uses less digits than its factorization.
64291474686 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10715245786.
The product of its digits is 13934592, while the sum is 57.
The spelling of 64291474686 in words is "sixty-four billion, two hundred ninety-one million, four hundred seventy-four thousand, six hundred eighty-six".
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