20885989 is an odd 8-digits prime number following 20885988
and preceding 20885990 . In scientific notation, it is written as 2.0885989 × 10^7.
The sum of its digits is 49. It has a total of 1 prime factors and 2 positive divisors.
There are 20885988 positive integers (up to 20885989) that are relatively prime to 20885989.
20885989 has 2 divisors, whose sum is 20885990
The reverse of 20885989 is 98958802
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty million eight hundred eighty-five thousand nine hundred eighty-nine
Scientific notation
2.0885989 × 10^7
Engineering notation
2.0885989 × 10^6
Prime Factorization
20885989
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20885989
Product of the distinct prime numbers
The prime factorization of 20885989 is 20885989.
Since it has a total of 1 prime factors.
9 , 8 , 77 , 71 , 645 , 954 , 8574 , 503 , 33767 , 13292 , 737545 , 875399 , 7249210 , 6425133 , 18131062 , 73004790 , 549961627 , 920479998 , 2511692768 , 1044816851
n×2
41771978
n×3
62657967
n×4
83543956
n×5
104429945
n÷2
10442994.5
n÷3
6961996.3333333
n÷3
5221497.25
n÷5
4177197.8
n2
436224536508121
n3
9.1109808710387E+21
n4
1.9029184625173E+29
n5
3.9744334076032E+36
2 √n
4570.1191450552
3 √n
275.39222928271
4 √n
67.602656346147
5 √n
29.105228217475
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20885990
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10442995
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4570.1192544615
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999904242
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20885989 can be divided by 2 positive divisors.
The sum of these divisors (counting 20885989) is 20885990, the average is 10442995.
Base
System
Value
2
Binary
1001111101011000111100101
3
Ternary
1110022010012011
4
Quaternary
1033223013211
5
Quinary
20321322424
6
Senary
2023354221
8
Octal
117530745
10
Decimal
20885989
12
Duodecimal
6bb2971
16
Hexadecimal
13eb1e5
20
Vigesimal
6aaej9
36
Base36
cfnqd
md5
4eecbd36b671584102a82fb6c6f16b7f
sha1
736651718619cd5a1de6110d9c0d683626296969
sha256
1dd71c25768dc64643042809ad46eb69d60112dc20df079cab5cea081a9c623f
sha512
c3c260bc5c95150a3713ace7f73bd8aad3ca14698639e918db100525d9538cfeb7b9c64dd486ba800b4c099266c50f8727a840a6c769ed99025b58e73ab5a72e
ripemd-160
4120dbb40de2f161c112132e9f06e5e81489d232
Diameter
41771978
Circumference
131230539.21071
Area
1.3704397992095E+15
Volume
3.8163987428603E+22
Surface area
5.4817591968381E+15
Circumference
131230539.21071
Perimeter
83543956
Area
436224536508121
Diagonal
29537248.907375
Surface area
2617347219048726
Volume
9.1109808710387E+21
Space diagonal
36175594.114325
Perimeter
62657967
Area
1.8889076518506E+14
Altitude
18087797.057162
Surface area
1.8889076518506E+14
Volume
1.0737393928621E+21
Height
9845749.6357918