20984945 is an odd 8-digits composite number following 20984944
and preceding 20984946 . In scientific notation, it is written as 2.0984945 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 16557696 positive integers (up to 20984945) that are relatively prime to 20984945.
20984945 has 8 divisors, whose sum is 25527336
The reverse of 20984945 is 54948902
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million nine hundred eighty-four thousand nine hundred forty-five
Scientific notation
2.0984945 × 10^7
Engineering notation
2.0984945 × 10^6
Prime Factorization
5 × 73 × 57493
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20984945
Product of the distinct prime numbers
The prime factorization of 20984945 is 5 × 73 × 57493.
Since it has a total of 3 prime factors.
3 , 8 , 42 , 51 , 531 , 44 , 7430 , 4123 , 69114 , 53728 , 951404 , 928355 , 5300376 , 8807141 , 28633222 , 1866219 , 361105772 , 986555196 , 1548294160 , 1501185048
n×2
41969890
n×3
62954835
n×4
83939780
n×5
104924725
n÷2
10492472.5
n÷3
6994981.6666667
n÷3
5246236.25
n÷5
4196989
n2
440367916653025
n3
9.2410965107283E+21
n4
1.9392390201733E+29
n5
4.069482418019E+36
2 √n
4580.9327652783
3 √n
275.82647234744
4 √n
67.682588346474
5 √n
29.132755705816
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20984944
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20984945 can be divided by 8 positive divisors.
The sum of these divisors (counting 20984945) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000011010001110001
3
Ternary
1110111010221012
4
Quaternary
1100003101301
5
Quinary
20333004240
6
Senary
2025440305
8
Octal
120032161
10
Decimal
20984945
12
Duodecimal
7040095
16
Hexadecimal
1403471
20
Vigesimal
6b3275
36
Base36
chs35
md5
2612d3cbca2df98f93c09c3657f06436
sha1
436c79da1765ac4016b5b024daa461b96a0edf85
sha256
3006038f76ae04417a133b655c5be62be1738cf680e73ee1141ca26d4d6fc99e
sha512
3b715dd67b25bae5d9aa2d20cb9cfe3848ca075a2999faddc5b16defbae1174a7abcdccd0eeddbe8514a87787c8a3990944ed202280a109634669c1b5fc282e8
ripemd-160
26f62c4de65e91fae45fc0b3f5a3df25a0a39d38
Diameter
41969890
Circumference
131852298.09597
Area
1.3834566118338E+15
Volume
3.8709014545624E+22
Surface area
5.5338264473351E+15
Circumference
131852298.09597
Perimeter
83939780
Area
440367916653025
Diagonal
29677193.824653
Surface area
2642207499918150
Volume
9.2410965107283E+21
Space diagonal
36346990.934038
Perimeter
62954835
Area
1.9068490141657E+14
Altitude
18173495.467019
Surface area
1.9068490141657E+14
Volume
1.0890736680559E+21
Height
9892397.9415512