Base | Representation |
---|---|
bin | 10000010111011111… |
… | …01111101100011010 |
3 | 211200101021212001210 |
4 | 20023233233230122 |
5 | 120443433000330 |
6 | 4011531523550 |
7 | 430515161031 |
oct | 101357575432 |
9 | 24611255053 |
10 | 8787000090 |
11 | 37aa03a250 |
12 | 18528b95b6 |
13 | aa05c3b4b |
14 | 5d500b718 |
15 | 3666558b0 |
hex | 20bbefb1a |
8787000090 has 64 divisors (see below), whose sum is σ = 23042299392. Its totient is φ = 2126817600.
The previous prime is 8787000083. The next prime is 8787000107. The reversal of 8787000090 is 900007878.
It is a super-2 number, since 2×87870000902 (a number of 21 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191485 + ... + 232895.
It is an arithmetic number, because the mean of its divisors is an integer number (360035928).
Almost surely, 28787000090 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 8787000090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11521149696).
8787000090 is an abundant number, since it is smaller than the sum of its proper divisors (14255299302).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8787000090 is a wasteful number, since it uses less digits than its factorization.
8787000090 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42075.
The product of its (nonzero) digits is 28224, while the sum is 39.
The square root of 8787000090 is about 93738.9998346473. Note that the first 3 decimals coincide. The cubic root of 8787000090 is about 2063.5430974211.
The spelling of 8787000090 in words is "eight billion, seven hundred eighty-seven million, ninety", and thus it is an aban number.
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