20984949 is an odd 8-digits composite number following 20984948
and preceding 20984950 . In scientific notation, it is written as 2.0984949 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 13253544 positive integers (up to 20984949) that are relatively prime to 20984949.
20984949 has 8 divisors, whose sum is 24544000
The reverse of 20984949 is 94948902
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty million nine hundred eighty-four thousand nine hundred forty-nine
Scientific notation
2.0984949 × 10^7
Engineering notation
2.0984949 × 10^6
Prime Factorization
9 × 19 × 122719
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20984949
Product of the distinct prime numbers
The prime factorization of 20984949 is 9 × 19 × 122719.
Since it has a total of 3 prime factors.
3 , 9 , 56 , 45 , 971 , 808 , 4252 , 7049 , 75199 , 34408 , 752878 , 670197 , 2178138 , 1760628 , 67124699 , 88317863 , 807956001 , 681435195 , 6795406352 , 6349218146
n×2
41969898
n×3
62954847
n×4
83939796
n×5
104924745
n÷2
10492474.5
n÷3
6994983
n÷3
5246237.25
n÷5
4196989.8
n2
440368084532601
n3
9.2411017951443E+21
n4
1.9392404987491E+29
n5
4.0694862964985E+36
2 √n
4580.9332018706
3 √n
275.8264898728
4 √n
67.682591571766
5 √n
29.132756816431
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
-20984948
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 20984949 can be divided by 8 positive divisors.
The sum of these divisors (counting 20984949) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000011010001110101
3
Ternary
1110111010221100
4
Quaternary
1100003101311
5
Quinary
20333004244
6
Senary
2025440313
8
Octal
120032165
10
Decimal
20984949
12
Duodecimal
7040099
16
Hexadecimal
1403475
20
Vigesimal
6b3279
36
Base36
chs39
md5
9a9b5e878435961dd12ed58fa862a9a7
sha1
81ebf5ef91aeace5f1f0fb5523b7275642f020ee
sha256
cbbcfa8164b3724dfb449880fc15bb71a6d844bb9aeb8fba379542e58c903af4
sha512
2411c99da5328c9b00754f94abd88bffa2cd3a5dd6791eb93b82a54b4d28c2917169e74163a59cd81969b7930b20e6b190ba95d891737a096f1ef2db7d07b7ff
ripemd-160
8ffa2593eafcff2741373b27c0e0a38a28906b4b
Diameter
41969898
Circumference
131852323.22871
Area
1.383457139243E+15
Volume
3.8709036680934E+22
Surface area
5.5338285569721E+15
Circumference
131852323.22871
Perimeter
83939796
Area
440368084532601
Diagonal
29677199.481508
Surface area
2642208507195606
Volume
9.2411017951443E+21
Space diagonal
36346997.862242
Perimeter
62954847
Area
1.9068497411056E+14
Altitude
18173498.931121
Surface area
1.9068497411056E+14
Volume
1.0890742908303E+21
Height
9892399.8271692