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65383679807 = 149438816643
BaseRepresentation
bin111100111001001010…
…111100011100111111
320020202200221002001122
4330321022330130333
52032401210223212
650011543101155
74503161052125
oct747112743477
9206680832048
1065383679807
1125802423416
1210808a417bb
13621cc34b44
1432438ab915
151a7a1e7272
hexf392bc73f

65383679807 has 4 divisors (see below), whose sum is σ = 65822496600. Its totient is φ = 64944863016.

The previous prime is 65383679773. The next prime is 65383679819. The reversal of 65383679807 is 70897638356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65383679807 - 216 = 65383614271 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 65383679807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65383679827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219408173 + ... + 219408470.

It is an arithmetic number, because the mean of its divisors is an integer number (16455624150).

Almost surely, 265383679807 is an apocalyptic number.

65383679807 is a deficient number, since it is larger than the sum of its proper divisors (438816793).

65383679807 is a wasteful number, since it uses less digits than its factorization.

65383679807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438816792.

The product of its (nonzero) digits is 45722880, while the sum is 62.

The spelling of 65383679807 in words is "sixty-five billion, three hundred eighty-three million, six hundred seventy-nine thousand, eight hundred seven".

Divisors: 1 149 438816643 65383679807