2021521887 is an odd 10-digits composite number following 2021521886
and preceding 2021521888 . In scientific notation, it is written as 2.021521887 × 10^9.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 1050140160 positive integers (up to 2021521887) that are relatively prime to 2021521887.
2021521887 has 16 divisors, whose sum is 2644802880
The reverse of 2021521887 is 7881251202
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 36
Digital Root 9
Name
two billion twenty-one million five hundred twenty-one thousand eight hundred eighty-seven
Scientific notation
2.021521887 × 10^9
Engineering notation
2.021521887 × 10^9
Prime Factorization
33 × 9 × 7 × 972353
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2021521887
Product of the distinct prime numbers
The prime factorization of 2021521887 is 33 × 9 × 7 × 972353.
Since it has a total of 4 prime factors.
6 , 9 , 66 , 3 , 528 , 204 , 2626 , 8147 , 55746 , 54899 , 753866 , 429626 , 2644786 , 5496044 , 6639783 , 89879069 , 631353368 , 514900323 , 4723215838 , 3844622276
n×2
4043043774
n×3
6064565661
n×4
8086087548
n×5
10107609435
n÷2
1010760943.5
n÷3
673840629
n÷3
505380471.75
n÷5
404304377.4
n2
4086550739620040769
n3
8.261051762478E+27
n4
1.6699896947489E+37
n5
3.3759207189994E+46
2 √n
44961.337691399
3 √n
1264.424248504
4 √n
212.04088683883
5 √n
72.633285506954
1 , 7 , 9 , 33 , 63 , 231 , 297 , 2079 , 972353 , 6806471 , 8751177 , 32087649 , 61258239 , 224613543 , 288788841 , 2021521887
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2021521886
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2021521887 can be divided by 16 positive divisors.
The sum of these divisors (counting 2021521887) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1111000011111011111100111011111
3
Ternary
12012212211221201000
4
Quaternary
1320133133213133
5
Quinary
13120002200022
6
Senary
532332121343
8
Octal
17037374737
10
Decimal
2021521887
12
Duodecimal
485006253
16
Hexadecimal
787df9df
20
Vigesimal
1bbea4e7
36
Base36
xfk89r
md5
33b3f61aef0bc2eec7cd30da4113bb33
sha1
d0444d2500fd722b7d9ce031b51461a72d50c744
sha256
959b2e18f72daf7bd85ef8c9bdf8ae12f3a7000d80a9b892a85e42bbb19517c0
sha512
391c92763b61c887955aec43e5720a5dfdd075b6ec99c292ea23ff7756b03677ce743a9d42c45a72eaba74021cb8a7805ef2377bca13ecdf75a8091cb9ae4a2c
ripemd-160
49a7f276bf568f4ce6654c89820c1e5edde2edb8
Diameter
4043043774
Circumference
12701596618.54
Area
1.2838277782112E+19
Volume
3.4603812703901E+28
Surface area
5.1353111128449E+19
Circumference
12701596618.54
Perimeter
8086087548
Area
4086550739620040769
Diagonal
2858863669.2295
Surface area
2.451930443772E+19
Volume
8.261051762478E+27
Space diagonal
3501378616.8965
Perimeter
6064565661
Area
1.7695283771825E+18
Altitude
1750689308.4483
Surface area
1.7695283771825E+18
Volume
9.7357428683021E+26
Height
952954556.40982