20454990 is an even 8-digits composite number following 20454989
and preceding 20454991 . In scientific notation, it is written as 2.0454990 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 5454656 positive integers (up to 20454990) that are relatively prime to 20454990.
20454990 has 16 divisors, whose sum is 49092048
The reverse of 20454990 is 09945402
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million four hundred fifty-four thousand nine hundred ninety
Scientific notation
2.0454990 × 10^7
Engineering notation
2.0454990 × 10^6
Prime Factorization
2 × 3 × 5 × 681833
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20454990
Product of the distinct prime numbers
The prime factorization of 20454990 is 2 × 3 × 5 × 681833.
Since it has a total of 4 prime factors.
8 , 9 , 63 , 61 , 749 , 102 , 3002 , 5346 , 35557 , 31598 , 669439 , 410775 , 3144906 , 8145325 , 87691035 , 60432574 , 610685094 , 581928796 , 3779408497 , 4967988137
n×2
40909980
n×3
61364970
n×4
81819960
n×5
102274950
n÷2
10227495
n÷3
6818330
n÷3
5113747.5
n÷5
4090998
n2
418406615900100
n3
8.5585031441704E+21
n4
1.7506409622897E+29
n5
3.5809343377227E+36
2 √n
4522.7193147486
3 √n
273.4847350127
4 √n
67.251165898805
5 √n
28.984102328214
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 681833 , 1363666 , 2045499 , 3409165 , 4090998 , 6818330 , 10227495 , 20454990
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20454989
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20454990 can be divided by 16 positive divisors.
The sum of these divisors (counting 20454990) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110000001111001001110
3
Ternary
1102111012222020
4
Quaternary
1032001321032
5
Quinary
20214024430
6
Senary
2010231010
8
Octal
116017116
10
Decimal
20454990
12
Duodecimal
6a25466
16
Hexadecimal
1381e4e
20
Vigesimal
67gh9a
36
Base36
c6f66
md5
63679cd2a44bf117212ab0f524cefae0
sha1
c1bde46fcadeb470c970940ee8c08e72574c5e72
sha256
c5379cd136eb0109235c676a54383d054a13cf2467ab2ddcbc75ed1e13f6c404
sha512
0e57b8c5ff0c413a33a9830919ce72f3ffa84595f6a8de5583fd78db6a794af597f2fa88dd14e0b10a0a3d7db0f45ba89ace0ef9aee0782a2067078ccdb175d3
ripemd-160
29fd9d90f9756234636c93a3e7a2ce354906bc32
Diameter
40909980
Circumference
128522492.62651
Area
1.3144631507251E+15
Volume
3.5849774137934E+22
Surface area
5.2578526029005E+15
Circumference
128522492.62651
Perimeter
81819960
Area
418406615900100
Diagonal
28927724.276206
Surface area
2510439695400600
Volume
8.5585031441704E+21
Space diagonal
35429081.948313
Perimeter
61364970
Area
1.8117537924048E+14
Altitude
17714540.974157
Surface area
1.8117537924048E+14
Volume
1.0086292683415E+21
Height
9642574.7587353