Base | Representation |
---|---|
bin | 10000101111010101… |
… | …01101111110011000 |
3 | 212012022122100121020 |
4 | 20113222231332120 |
5 | 121401133241140 |
6 | 4043434442440 |
7 | 435464213121 |
oct | 102752557630 |
9 | 25168570536 |
10 | 8987008920 |
11 | 38a1a288aa |
12 | 18a9893420 |
13 | b02b82176 |
14 | 6137d3048 |
15 | 378eb26d0 |
hex | 217aadf98 |
8987008920 has 32 divisors (see below), whose sum is σ = 26961027120. Its totient is φ = 2396535680.
The previous prime is 8987008913. The next prime is 8987008931. The reversal of 8987008920 is 298007898.
It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37445751 + ... + 37445990.
Almost surely, 28987008920 is an apocalyptic number.
It is an amenable number.
8987008920 is an abundant number, since it is smaller than the sum of its proper divisors (17974018200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8987008920 is a wasteful number, since it uses less digits than its factorization.
8987008920 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 74891755 (or 74891751 counting only the distinct ones).
The product of its (nonzero) digits is 580608, while the sum is 51.
The square root of 8987008920 is about 94799.8360758076. The cubic root of 8987008920 is about 2079.0825064700.
The spelling of 8987008920 in words is "eight billion, nine hundred eighty-seven million, eight thousand, nine hundred twenty".
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