Base | Representation |
---|---|
bin | 1110111010010100… |
… | …01101100001110100 |
3 | 202122220120220111100 |
4 | 13131022031201310 |
5 | 112343341041014 |
6 | 3402211410100 |
7 | 402244565334 |
oct | 73512154164 |
9 | 22586526440 |
10 | 8005408884 |
11 | 3438932200 |
12 | 1674bb3930 |
13 | 9a76b8045 |
14 | 55d2b50c4 |
15 | 31cc18009 |
hex | 1dd28d874 |
8005408884 has 54 divisors (see below), whose sum is σ = 22242772370. Its totient is φ = 2425880160.
The previous prime is 8005408867. The next prime is 8005408897. The reversal of 8005408884 is 4888045008.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 7997724900 + 7683984 = 89430^2 + 2772^2 .
It is a super-2 number, since 2×80054088842 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
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 17 ways as a sum of consecutive naturals, for example, 914539 + ... + 923250.
Almost surely, 28005408884 is an apocalyptic number.
It is an amenable number.
8005408884 is an abundant number, since it is smaller than the sum of its proper divisors (14237363486).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8005408884 is a wasteful number, since it uses less digits than its factorization.
8005408884 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1837821 (or 1837805 counting only the distinct ones).
The product of its (nonzero) digits is 327680, while the sum is 45.
The square root of 8005408884 is about 89472.9505716672. The cubic root of 8005408884 is about 2000.4506387880.
The spelling of 8005408884 in words is "eight billion, five million, four hundred eight thousand, eight hundred eighty-four".
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