20108881 is an odd 8-digits composite number following 20108880
and preceding 20108882 . In scientific notation, it is written as 2.0108881 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 18562032 positive integers (up to 20108881) that are relatively prime to 20108881.
20108881 has 4 divisors, whose sum is 21655732
The reverse of 20108881 is 18880102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred eight thousand eight hundred eighty-one
Scientific notation
2.0108881 × 10^7
Engineering notation
2.0108881 × 10^6
Prime Factorization
13 × 1546837
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20108881
Product of the distinct prime numbers
The prime factorization of 20108881 is 13 × 1546837.
Since it has a total of 2 prime factors.
5 , 6 , 63 , 43 , 561 , 377 , 3934 , 7462 , 69167 , 84612 , 329070 , 14338 , 6415385 , 1703142 , 33472486 , 31189444 , 41302773 , 132246492 , 7594933529 , 1349563747
n×2
40217762
n×3
60326643
n×4
80435524
n×5
100544405
n÷2
10054440.5
n÷3
6702960.3333333
n÷3
5027220.25
n÷5
4021776.2
n2
404367095072161
n3
8.1313697951218E+21
n4
1.635127475771E+29
n5
3.2880583830109E+36
2 √n
4484.292697851
3 √n
271.93345131584
4 √n
66.964861665287
5 √n
28.885346449208
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
-20108880
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 20108881 can be divided by 4 positive divisors.
The sum of these divisors (counting 20108881) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101101011001010001
3
Ternary
1101211122012101
4
Quaternary
1030231121101
5
Quinary
20121441011
6
Senary
1555000401
8
Octal
114553121
10
Decimal
20108881
12
Duodecimal
6899101
16
Hexadecimal
132d651
20
Vigesimal
65dc41
36
Base36
bz041
md5
dc5bbed683f0c161ee7c913e5a01c82b
sha1
dbe6d1912e2d4c084237e9ee1485b7f49a449f10
sha256
d506671cf03dc0a04f70e2492236a8df3556d692934561197b8fb086e50ecc99
sha512
fa7f6736cf9f30dc471569d5957401a72272fe9abdfa6218dca1d939f081eef59491e32ebd00518ca10d16660cbf3b5a1ffc1ce154ec9cf9680c5fa76e08cbcd
ripemd-160
de0b37e8a52d80429c88d401ac90c3829b307484
Diameter
40217762
Circumference
126347825.64302
Area
1.2703566952321E+15
Volume
3.4060602149302E+22
Surface area
5.0814267809286E+15
Circumference
126347825.64302
Perimeter
80435524
Area
404367095072161
Diagonal
28438252.234347
Surface area
2426202570432966
Volume
8.1313697951218E+21
Space diagonal
34829603.575356
Perimeter
60326643
Area
1.750960883935E+14
Altitude
17414801.787678
Surface area
1.750960883935E+14
Volume
9.5829112041101E+20
Height
9479417.4114489