20087881 is an odd 8-digits composite number following 20087880
and preceding 20087882 . In scientific notation, it is written as 2.0087881 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 18261700 positive integers (up to 20087881) that are relatively prime to 20087881.
20087881 has 4 divisors, whose sum is 21914064
The reverse of 20087881 is 18878002
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million eighty-seven thousand eight hundred eighty-one
Scientific notation
2.0087881 × 10^7
Engineering notation
2.0087881 × 10^6
Prime Factorization
11 × 1826171
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20087881
Product of the distinct prime numbers
The prime factorization of 20087881 is 11 × 1826171.
Since it has a total of 2 prime factors.
1 , 1 , 9 , 67 , 107 , 118 , 3069 , 1329 , 46995 , 73697 , 223049 , 139772 , 4399293 , 9546732 , 44770313 , 84871294 , 26428416 , 233927395 , 8206962062 , 9756523243
n×2
40175762
n×3
60263643
n×4
80351524
n×5
100439405
n÷2
10043940.5
n÷3
6695960.3333333
n÷3
5021970.25
n÷5
4017576.2
n2
403522963070161
n3
8.1059212629208E+21
n4
1.6283078172492E+29
n5
3.2709253664272E+36
2 √n
4481.9505798257
3 √n
271.83875697788
4 √n
66.947371717086
5 √n
28.879310849081
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20087880
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20087881 can be divided by 4 positive divisors.
The sum of these divisors (counting 20087881) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101000010001001001
3
Ternary
1101210120101121
4
Quaternary
1030220101021
5
Quinary
20120303011
6
Senary
1554315241
8
Octal
114502111
10
Decimal
20087881
12
Duodecimal
6888b21
16
Hexadecimal
1328449
20
Vigesimal
65aje1
36
Base36
byjwp
md5
9736ed9b53c7bdfd2e635dc29466cf96
sha1
8903b3ecc3395379d910c44c7172fc2062da8ac7
sha256
441ba6b658c9e9a9a99190cd033027ac6cf79ddfaaa87e67cef73ea1c38885e5
sha512
0c90fa7c5fbe579f7810d8cfef201c319c398a3def9e0840cf3fdf5dfc2496666b23ad755eee745b1db00692f4490f45d4bfcf61566aab1339552deb5de2af12
ripemd-160
124ddab1ac9edbd878b2b283ed77238d9c8532f9
Diameter
40175762
Circumference
126215878.75157
Area
1.267704776336E+15
Volume
3.3954003586892E+22
Surface area
5.070819105344E+15
Circumference
126215878.75157
Perimeter
80351524
Area
403522963070161
Diagonal
28408553.749537
Surface area
2421137778420966
Volume
8.1059212629208E+21
Space diagonal
34793230.508398
Perimeter
60263643
Area
1.7473056851456E+14
Altitude
17396615.254199
Surface area
1.7473056851456E+14
Volume
9.5529198212925E+20
Height
9469517.9165123