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8988728896 = 26720064127
BaseRepresentation
bin10000101111100010…
…10001111001000000
3212012102212201222001
420113301101321000
5121402103311041
64043535353344
7435514635460
oct102761217100
925172781861
108988728896
1138a29a3074
1218aa382854
13b03334cc4
14613b1dba0
15379202131
hex217c51e40

8988728896 has 28 divisors (see below), whose sum is σ = 20385154048. Its totient is φ = 3852312192.

The previous prime is 8988728863. The next prime is 8988728909. The reversal of 8988728896 is 6988278898.

It is a tau number, because it is divible by the number of its divisors (28).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10031616 + ... + 10032511.

It is an arithmetic number, because the mean of its divisors is an integer number (728041216).

Almost surely, 28988728896 is an apocalyptic number.

It is an amenable number.

8988728896 is an abundant number, since it is smaller than the sum of its proper divisors (11396425152).

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

8988728896 is a wasteful number, since it uses less digits than its factorization.

8988728896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20064146 (or 20064136 counting only the distinct ones).

The product of its digits is 222953472, while the sum is 73.

The square root of 8988728896 is about 94808.9072608687. The cubic root of 8988728896 is about 2079.2151328696.

The spelling of 8988728896 in words is "eight billion, nine hundred eighty-eight million, seven hundred twenty-eight thousand, eight hundred ninety-six".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 224 448 20064127 40128254 80256508 140448889 160513016 280897778 321026032 561795556 642052064 1123591112 1284104128 2247182224 4494364448 8988728896