Base | Representation |
---|---|
bin | 111100010110011001… |
… | …110000100011001011 |
3 | 20012021001022101121110 |
4 | 330112121300203023 |
5 | 2030202343020101 |
6 | 45434024341403 |
7 | 4452545656155 |
oct | 742631604313 |
9 | 205231271543 |
10 | 64800360651 |
11 | 25533129074 |
12 | 10685614863 |
13 | 6159129990 |
14 | 31ca227ad5 |
15 | 1a43dc1cd6 |
hex | f166708cb |
64800360651 has 8 divisors (see below), whose sum is σ = 93046671760. Its totient is φ = 39877144992.
The previous prime is 64800360637. The next prime is 64800360659. The reversal of 64800360651 is 15606300846.
64800360651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 64800360651 - 29 = 64800360139 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1661547709 = 64800360651 / (6 + 4 + 8 + 0 + 0 + 3 + 6 + 0 + 6 + 5 + 1).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (64800360659) 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, 830773816 + ... + 830773893.
It is an arithmetic number, because the mean of its divisors is an integer number (11630833970).
Almost surely, 264800360651 is an apocalyptic number.
64800360651 is a deficient number, since it is larger than the sum of its proper divisors (28246311109).
64800360651 is a wasteful number, since it uses less digits than its factorization.
64800360651 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1661547725.
The product of its (nonzero) digits is 103680, while the sum is 39.
The spelling of 64800360651 in words is "sixty-four billion, eight hundred million, three hundred sixty thousand, six hundred fifty-one".
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