201991881 is an odd 9-digits composite number following 201991880
and preceding 201991882 . In scientific notation, it is written as 2.01991881 × 10^8.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 105758784 positive integers (up to 201991881) that are relatively prime to 201991881.
201991881 has 16 divisors, whose sum is 238515200
The reverse of 201991881 is 188199102
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 39
Digital Root 3
Name
two hundred one million nine hundred ninety-one thousand eight hundred eighty-one
Scientific notation
2.01991881 × 10^8
Engineering notation
2.01991881 × 10^6
Prime Factorization
39 × 7 × 139 × 5323
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
201991881
Product of the distinct prime numbers
The prime factorization of 201991881 is 39 × 7 × 139 × 5323.
Since it has a total of 4 prime factors.
7 , 2 , 87 , 18 , 77 , 473 , 8182 , 8533 , 80166 , 10834 , 86184 , 661427 , 3576241 , 2624364 , 23348764 , 19925122 , 49964985 , 787521739 , 3354757246 , 4256206883
n×2
403983762
n×3
605975643
n×4
807967524
n×5
1009959405
n÷2
100995940.5
n÷3
67330627
n÷3
50497970.25
n÷5
40398376.2
n2
40800719989918161
n3
8.2414141769179E+24
n4
1.6646987516957E+33
n5
3.3625563215337E+41
2 √n
14212.384775259
3 √n
586.73856969229
4 √n
119.21570691506
5 √n
45.8212341908
1 , 7 , 39 , 139 , 273 , 973 , 5323 , 5421 , 37261 , 37947 , 207597 , 739897 , 1453179 , 5179279 , 28855983 , 201991881
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
-201991880
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 201991881 can be divided by 16 positive divisors.
The sum of these divisors (counting 201991881) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100000010100010011011001001
3
Ternary
112002002020202210
4
Quaternary
30002202123021
5
Quinary
403202220011
6
Senary
32013215333
8
Octal
1402423311
10
Decimal
201991881
12
Duodecimal
57791549
16
Hexadecimal
c0a26c9
20
Vigesimal
3328je1
36
Base36
3c9dxl
md5
d3915aa3ac7b1dc0e83d90ea8ff5a91a
sha1
7fcd1d655a7ca1637d7e4fa25633ef0fc2101234
sha256
cb744829e6f4e1f811dfdb5ac55b1acd7c2b17aad31414049237d615cf67cfd8
sha512
4e0c9559be12a5b9f879e6040f3ebc5edff2fe93d77e92a0a3edce3007ca0770ec79686180069701547a4ae6d4671450781ef7207847f0796efd118d4d9d2159
ripemd-160
ae48bfcc33b546c78dd042018bece139683e7f29
Diameter
403983762
Circumference
1269152418.8688
Area
1.281792421815E+17
Volume
3.4521554977861E+25
Surface area
5.12716968726E+17
Circumference
1269152418.8688
Perimeter
807967524
Area
40800719989918161
Diagonal
285659657.59945
Surface area
244804319939508966
Volume
8.2414141769179E+24
Space diagonal
349860200.60841
Perimeter
605975643
Area
1.7667230001982E+16
Altitude
174930100.3042
Surface area
1.7667230001982E+16
Volume
9.712599751776E+23
Height
95219885.866484