20551491 is an odd 8-digits composite number following 20551490
and preceding 20551492 . In scientific notation, it is written as 2.0551491 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 13700988 positive integers (up to 20551491) that are relatively prime to 20551491.
20551491 has 4 divisors, whose sum is 22835000
The reverse of 20551491 is 19415502
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million five hundred fifty-one thousand four hundred ninety-one
Scientific notation
2.0551491 × 10^7
Engineering notation
2.0551491 × 10^6
Prime Factorization
9 × 2283499
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20551491
Product of the distinct prime numbers
The prime factorization of 20551491 is 9 × 2283499.
Since it has a total of 2 prime factors.
4 , 8 , 41 , 22 , 344 , 80 , 5444 , 7938 , 47471 , 89652 , 692866 , 450799 , 6236968 , 2066781 , 38714480 , 84532981 , 641875980 , 58297816 , 7966093480 , 3731356990
n×2
41102982
n×3
61654473
n×4
82205964
n×5
102757455
n÷2
10275745.5
n÷3
6850497
n÷3
5137872.75
n÷5
4110298.2
n2
422363782323081
n3
8.6802054711388E+21
n4
1.7839116461826E+29
n5
3.6662044141317E+36
2 √n
4533.3752326495
3 √n
273.9141356327
4 √n
67.330344070482
5 √n
29.011398665881
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
-20551490
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 20551491 can be divided by 4 positive divisors.
The sum of these divisors (counting 20551491) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110011001011101000011
3
Ternary
1102200010100100
4
Quaternary
1032121131003
5
Quinary
20230121431
6
Senary
2012253443
8
Octal
116313503
10
Decimal
20551491
12
Duodecimal
6a71283
16
Hexadecimal
1399743
20
Vigesimal
688ieb
36
Base36
c8hmr
md5
904a91a7f9101b04d4ab556ef1d22255
sha1
8c67986241c2317098e6f9160908caf977bd44ef
sha256
55a6e6c14e0e5e45b95a3d5510857ed90822868090c16f6d46f9044d1d4a6ba5
sha512
dc58f4111a23b327107ccb2b662c944aac3261e80175d2efa79224a0ac417920a8d0f8e31e30cd31bb4116e03f73edec2b80eb09ba68c71ae011dfefe1732f65
ripemd-160
403cdda18f357eb73f4535249ab10941a24c1d71
Diameter
41102982
Circumference
129128826.29183
Area
1.3268949556886E+15
Volume
3.6359559653039E+22
Surface area
5.3075798227544E+15
Circumference
129128826.29183
Perimeter
82205964
Area
422363782323081
Diagonal
29064197.299189
Surface area
2534182693938486
Volume
8.6802054711388E+21
Space diagonal
35596226.583295
Perimeter
61654473
Area
1.8288888256513E+14
Altitude
17798113.291647
Surface area
1.8288888256513E+14
Volume
1.0229720251225E+21
Height
9688065.7663962