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64383682789 = 379201784223
BaseRepresentation
bin111011111101100100…
…010000100011100101
320011012000020222001001
4323331210100203211
52023324210322124
645324421433301
74436326162666
oct737544204345
9204160228031
1064383682789
1125339a018a8
1210589b6b831
1360c09c912a
14318ab6136d
151a1c516b44
hexefd9108e5

64383682789 has 8 divisors (see below), whose sum is σ = 64586332160. Its totient is φ = 64181206656.

The previous prime is 64383682787. The next prime is 64383682813. The reversal of 64383682789 is 98728638346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64383682789 - 21 = 64383682787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64383682789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64383682787) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 722332 + ... + 806554.

It is an arithmetic number, because the mean of its divisors is an integer number (8073291520).

Almost surely, 264383682789 is an apocalyptic number.

It is an amenable number.

64383682789 is a deficient number, since it is larger than the sum of its proper divisors (202649371).

64383682789 is a wasteful number, since it uses less digits than its factorization.

64383682789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86619.

The product of its digits is 83607552, while the sum is 64.

The spelling of 64383682789 in words is "sixty-four billion, three hundred eighty-three million, six hundred eighty-two thousand, seven hundred eighty-nine".

Divisors: 1 379 2017 84223 764443 31920517 169877791 64383682789