20454981 is an odd 8-digits composite number following 20454980
and preceding 20454982 . In scientific notation, it is written as 2.0454981 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 12995840 positive integers (up to 20454981) that are relatively prime to 20454981.
20454981 has 16 divisors, whose sum is 28563840
The reverse of 20454981 is 18945402
Previous prime number is 569
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million four hundred fifty-four thousand nine hundred eighty-one
Scientific notation
2.0454981 × 10^7
Engineering notation
2.0454981 × 10^6
Prime Factorization
3 × 23 × 569 × 521
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20454981
Product of the distinct prime numbers
The prime factorization of 20454981 is 3 × 23 × 569 × 521.
Since it has a total of 4 prime factors.
6 , 6 , 76 , 56 , 84 , 653 , 5448 , 5877 , 42104 , 40762 , 129459 , 299802 , 7090423 , 7521202 , 97276140 , 88993485 , 308695316 , 676582899 , 8556016651 , 9300183403
n×2
40909962
n×3
61364943
n×4
81819924
n×5
102274905
n÷2
10227490.5
n÷3
6818327
n÷3
5113745.25
n÷5
4090996.2
n2
418406247710361
n3
8.5584918471967E+21
n4
1.7506378812306E+29
n5
3.5809264598453E+36
2 √n
4522.7183197719
3 √n
273.48469490247
4 √n
67.251158501336
5 √n
28.984099777668
1 , 3 , 23 , 69 , 521 , 569 , 1563 , 1707 , 11983 , 13087 , 35949 , 39261 , 296449 , 889347 , 6818327 , 20454981
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
-20454980
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 20454981 can be divided by 16 positive divisors.
The sum of these divisors (counting 20454981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110000001111001000101
3
Ternary
1102111012221220
4
Quaternary
1032001321011
5
Quinary
20214024411
6
Senary
2010230553
8
Octal
116017105
10
Decimal
20454981
12
Duodecimal
6a25459
16
Hexadecimal
1381e45
20
Vigesimal
67gh91
36
Base36
c6f5x
md5
94a0c3f2e38a90b5df136d36440e8a82
sha1
11b6b24d7dd8858b423ce8d4f576101143bd37ea
sha256
0e846af921ce8afb5abe96c5d16f1bb7cfc66ff3866a995fe203a1342298a128
sha512
03e7969a9ece903df960fd6aad7af284ff3022ee6af2abbdbdd55e9415faca3a23eec84547ee8e86356cd879f1f98944b5950833968e1a68929999bce0db0c3c
ripemd-160
efcbea4309abfa766f6bfe39d98012429ccb5d30
Diameter
40909962
Circumference
128522436.07784
Area
1.3144619940229E+15
Volume
3.5849726817282E+22
Surface area
5.2578479760918E+15
Circumference
128522436.07784
Perimeter
81819924
Area
418406247710361
Diagonal
28927711.548284
Surface area
2510437486262166
Volume
8.5584918471967E+21
Space diagonal
35429066.359856
Perimeter
61364943
Area
1.8117521980965E+14
Altitude
17714533.179928
Surface area
1.8117521980965E+14
Volume
1.0086279369804E+21
Height
9642570.5160947