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8673508385 = 54142309797
BaseRepresentation
bin10000001001111101…
…10011110000100001
3211101110201212201022
420010332303300201
5120230404232020
63552355215225
7424636414313
oct100476636041
924343655638
108673508385
113750a73253
1218208a7515
13a82c383a9
145c3d077b3
1535b6d8625
hex204fb3c21

8673508385 has 8 divisors (see below), whose sum is σ = 10662069096. Its totient is φ = 6769567360.

The previous prime is 8673508367. The next prime is 8673508391. The reversal of 8673508385 is 5838053768.

It can be written as a sum of positive squares in 4 ways, for example, as 30459361 + 8643049024 = 5519^2 + 92968^2 .

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

It is not a de Polignac number, because 8673508385 - 210 = 8673507361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21154694 + ... + 21155103.

It is an arithmetic number, because the mean of its divisors is an integer number (1332758637).

Almost surely, 28673508385 is an apocalyptic number.

It is an amenable number.

8673508385 is a deficient number, since it is larger than the sum of its proper divisors (1988560711).

8673508385 is a wasteful number, since it uses less digits than its factorization.

8673508385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42309843.

The product of its (nonzero) digits is 4838400, while the sum is 53.

The square root of 8673508385 is about 93131.6722978816. The cubic root of 8673508385 is about 2054.6204238915.

The spelling of 8673508385 in words is "eight billion, six hundred seventy-three million, five hundred eight thousand, three hundred eighty-five".

Divisors: 1 5 41 205 42309797 211548985 1734701677 8673508385