20995881 is an odd 8-digits composite number following 20995880
and preceding 20995882 . In scientific notation, it is written as 2.0995881 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 13997252 positive integers (up to 20995881) that are relatively prime to 20995881.
20995881 has 4 divisors, whose sum is 27994512
The reverse of 20995881 is 18859902
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million nine hundred ninety-five thousand eight hundred eighty-one
Scientific notation
2.0995881 × 10^7
Engineering notation
2.0995881 × 10^6
Prime Factorization
3 × 6998627
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20995881
Product of the distinct prime numbers
The prime factorization of 20995881 is 3 × 6998627.
Since it has a total of 2 prime factors.
10 , 7 , 67 , 92 , 788 , 162 , 5784 , 9075 , 67667 , 94401 , 15646 , 713675 , 8081882 , 2311683 , 9907087 , 35749929 , 422749606 , 601346847 , 8991819222 , 5479158956
n×2
41991762
n×3
62987643
n×4
83983524
n×5
104979405
n÷2
10497940.5
n÷3
6998627
n÷3
5248970.25
n÷5
4199176.2
n2
440827018966161
n3
9.2555516317983E+21
n4
1.9432846065059E+29
n5
4.080097234733E+36
2 √n
4582.1262531711
3 √n
275.87437834961
4 √n
67.69140457378
5 √n
29.135791495755
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
-20995880
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 20995881 can be divided by 4 positive divisors.
The sum of these divisors (counting 20995881) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000101111100101001
3
Ternary
1110111200221020
4
Quaternary
1100011330221
5
Quinary
20333332011
6
Senary
2030003053
8
Octal
120057451
10
Decimal
20995881
12
Duodecimal
7046489
16
Hexadecimal
1405f29
20
Vigesimal
6b49e1
36
Base36
ci0ix
md5
c5c878805add97663521b1acd30715d5
sha1
ab3522ee0b8bd7be00b0b19a827fa83d14eb6709
sha256
2c2b3819f4b147bb1f13d6009aab24912d9b8525cd5ded3c11602f38f8852f7a
sha512
4691266ff4d81c854b5d53436c43c3f92a10e0aab6f356e4bcf8813229cce187dcd89f167da87d2f5bd0448e3d548d7748f98a767f86ae91bc403cdd446416a4
ripemd-160
e1d5262b347393a15396d95d93d615407c4b0cfd
Diameter
41991762
Circumference
131921011.01049
Area
1.384898924288E+15
Volume
3.8769564015171E+22
Surface area
5.5395956971519E+15
Circumference
131921011.01049
Perimeter
83983524
Area
440827018966161
Diagonal
29692659.664172
Surface area
2644962113796966
Volume
9.2555516317983E+21
Space diagonal
36365932.64167
Perimeter
62987643
Area
1.9088369854963E+14
Altitude
18182966.320835
Surface area
1.9088369854963E+14
Volume
1.0907772204111E+21
Height
9897553.2213905