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8999042285 = 51799808457
BaseRepresentation
bin10000110000110001…
…00111110011101101
3212020011021201021102
420120120213303231
5121412223323120
64044544412445
7436001411612
oct103030476355
925204251242
108999042285
1138a87a7732
1218b1917125
13b055063bc
14615246509
1537a08cd75
hex218627ced

8999042285 has 4 divisors (see below), whose sum is σ = 10798850748. Its totient is φ = 7199233824.

The previous prime is 8999042237. The next prime is 8999042323. The reversal of 8999042285 is 5822409998.

8999042285 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3299698249 + 5699344036 = 57443^2 + 75494^2 .

It is a cyclic number.

It is not a de Polignac number, because 8999042285 - 214 = 8999025901 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 8999042285.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 899904224 + ... + 899904233.

It is an arithmetic number, because the mean of its divisors is an integer number (2699712687).

Almost surely, 28999042285 is an apocalyptic number.

It is an amenable number.

8999042285 is a deficient number, since it is larger than the sum of its proper divisors (1799808463).

8999042285 is a wasteful number, since it uses less digits than its factorization.

8999042285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799808462.

The product of its (nonzero) digits is 3732480, while the sum is 56.

The square root of 8999042285 is about 94863.2820695131. The cubic root of 8999042285 is about 2080.0100379354.

The spelling of 8999042285 in words is "eight billion, nine hundred ninety-nine million, forty-two thousand, two hundred eighty-five".

Divisors: 1 5 1799808457 8999042285