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8987078016 = 273271765557
BaseRepresentation
bin10000101111010101…
…11110110110000000
3212012022202212101100
420113222332312000
5121401142444031
64043440134400
7435464621430
oct102752766600
925168685340
108987078016
1138a1a75804
1218a9907400
13b02ba7757
146138102c0
15378ec7de6
hex217abed80

8987078016 has 192 divisors, whose sum is σ = 31294766880. Its totient is φ = 2416656384.

The previous prime is 8987078011. The next prime is 8987078081. The reversal of 8987078016 is 6108707898.

8987078016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8987078011) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 104310 + ... + 169866.

Almost surely, 28987078016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8987078016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15647383440).

8987078016 is an abundant number, since it is smaller than the sum of its proper divisors (22307688864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8987078016 is a wasteful number, since it uses less digits than its factorization.

8987078016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65601 (or 65586 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The square root of 8987078016 is about 94800.2005061171. The cubic root of 8987078016 is about 2079.0878347506.

The spelling of 8987078016 in words is "eight billion, nine hundred eighty-seven million, seventy-eight thousand, sixteen".