20556989 is an odd 8-digits composite number following 20556988
and preceding 20556990 . In scientific notation, it is written as 2.0556989 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 20420700 positive integers (up to 20556989) that are relatively prime to 20556989.
20556989 has 4 divisors, whose sum is 20693280
The reverse of 20556989 is 98965502
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million five hundred fifty-six thousand nine hundred eighty-nine
Scientific notation
2.0556989 × 10^7
Engineering notation
2.0556989 × 10^6
Prime Factorization
151 × 136139
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20556989
Product of the distinct prime numbers
The prime factorization of 20556989 is 151 × 136139.
Since it has a total of 2 prime factors.
8 , 5 , 74 , 86 , 244 , 148 , 5172 , 9259 , 29611 , 29546 , 384355 , 505162 , 8646755 , 9304105 , 71292659 , 95143625 , 57865693 , 845461082 , 8379532109 , 6079701844
n×2
41113978
n×3
61670967
n×4
82227956
n×5
102784945
n÷2
10278494.5
n÷3
6852329.6666667
n÷3
5139247.25
n÷5
4111397.8
n2
422589796746121
n3
8.6871738032222E+21
n4
1.7858213631393E+29
n5
3.6711110118019E+36
2 √n
4533.9815835532
3 √n
273.93855958071
4 √n
67.33484672555
5 √n
29.012950744065
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
-20556988
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 20556989 can be divided by 4 positive divisors.
The sum of these divisors (counting 20556989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110011010110010111101
3
Ternary
1102200101212222
4
Quaternary
1032122302331
5
Quinary
20230310424
6
Senary
2012335125
8
Octal
116326275
10
Decimal
20556989
12
Duodecimal
6a744a5
16
Hexadecimal
139acbd
20
Vigesimal
689c99
36
Base36
c8lvh
md5
9d853fcba224a7c22300ed535e816d93
sha1
ff59a1146bc63c86c4be829c681d563901419b7d
sha256
65baac095f04118897e553b601970d454d23d5d65625e0096a07443f31458e7a
sha512
bc9f85640451e2425610fea2026f46247b49b2cb8fd752328eba60b6ba59fa417c91335994b10c3c88591c98748e7765f9ac927dcf09cb9611a06efa5a61ac57
ripemd-160
70556ea35de803fcea7ff821eda432a8b2493fb2
Diameter
41113978
Circumference
129163371.24465
Area
1.3276050009396E+15
Volume
3.6388748534214E+22
Surface area
5.3104200037585E+15
Circumference
129163371.24465
Perimeter
82227956
Area
422589796746121
Diagonal
29071972.645355
Surface area
2535538780476726
Volume
8.6871738032222E+21
Space diagonal
35605749.398635
Perimeter
61670967
Area
1.8298674968112E+14
Altitude
17802874.699317
Surface area
1.8298674968112E+14
Volume
1.0237932509341E+21
Height
9690657.5484515