Base | Representation |
---|---|
bin | 1010110000100011… |
… | …0001101100000000 |
3 | 21110021020200021210 |
4 | 2230020301230000 |
5 | 21403310404244 |
6 | 1154323250120 |
7 | 131365304040 |
oct | 25410615400 |
9 | 7407220253 |
10 | 2887981824 |
11 | 1252210542 |
12 | 687219940 |
13 | 3704236b0 |
14 | 1d57a7720 |
15 | 11d8184b9 |
hex | ac231b00 |
2887981824 has 432 divisors, whose sum is σ = 10002322176. Its totient is φ = 719953920.
The previous prime is 2887981813. The next prime is 2887981829. The reversal of 2887981824 is 4281897882.
Its product of digits (4128768) is a multiple of the sum of its prime factors (144).
It is not an unprimeable number, because it can be changed into a prime (2887981829) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67162347 + ... + 67162389.
Almost surely, 22887981824 is an apocalyptic number.
2887981824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2887981824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5001161088).
2887981824 is an abundant number, since it is smaller than the sum of its proper divisors (7114340352).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2887981824 is a wasteful number, since it uses less digits than its factorization.
2887981824 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 144 (or 99 counting only the distinct ones).
The product of its digits is 4128768, while the sum is 57.
The square root of 2887981824 is about 53739.9462597424. The cubic root of 2887981824 is about 1424.0704842442.
The spelling of 2887981824 in words is "two billion, eight hundred eighty-seven million, nine hundred eighty-one thousand, eight hundred twenty-four".
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