21084955 is an odd 8-digits composite number following 21084954
and preceding 21084956 . In scientific notation, it is written as 2.1084955 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 16346880 positive integers (up to 21084955) that are relatively prime to 21084955.
21084955 has 16 divisors, whose sum is 26096544
The reverse of 21084955 is 55948012
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million eighty-four thousand nine hundred fifty-five
Scientific notation
2.1084955 × 10^7
Engineering notation
2.1084955 × 10^6
Prime Factorization
73 × 5 × 61 × 947
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21084955
Product of the distinct prime numbers
The prime factorization of 21084955 is 73 × 5 × 61 × 947.
Since it has a total of 4 prime factors.
2 , 3 , 51 , 57 , 173 , 354 , 8667 , 7303 , 25860 , 80524 , 122730 , 580648 , 9093365 , 7531480 , 53017172 , 54228255 , 74615068 , 629429331 , 8582718710 , 8802376587
n×2
42169910
n×3
63254865
n×4
84339820
n×5
105424775
n÷2
10542477.5
n÷3
7028318.3333333
n÷3
5271238.75
n÷5
4216991
n2
444575327352025
n3
9.3738507713277E+21
n4
1.9764722169016E+29
n5
4.1673827752121E+36
2 √n
4591.835689569
3 √n
276.2639558069
4 √n
67.763085006285
5 √n
29.160471085003
1 , 5 , 61 , 73 , 305 , 365 , 947 , 4453 , 4735 , 22265 , 57767 , 69131 , 288835 , 345655 , 4216991 , 21084955
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
-21084954
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 21084955 can be divided by 16 positive divisors.
The sum of these divisors (counting 21084955) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011011101100011011
3
Ternary
1110200020010021
4
Quaternary
1100123230123
5
Quinary
20344204310
6
Senary
2031531311
8
Octal
120335433
10
Decimal
21084955
12
Duodecimal
7089b37
16
Hexadecimal
141bb1b
20
Vigesimal
6bfc7f
36
Base36
cjx97
md5
13e0817fc39ee04548978df4406fa784
sha1
a4bfbb35b00cfc2c8e0e9da89121f439ec756e33
sha256
15da9118a14501d40959ff2b88dfda391f15ff6929e8f366731fcb82ebc0d718
sha512
8ce1cedfe06b2db70b22fcc7e6bd88de8f90387ecabad39ebc7c73087c87920f2124244508c430bd9ba05bbc67b6fffe5a5d7b06ba40930e24e2558b91f127f0
ripemd-160
804e966ac9386af46b6066fcbb0a2e487e921d2e
Diameter
42169910
Circumference
132480679.45854
Area
1.3966745823764E+15
Volume
3.9265094292067E+22
Surface area
5.5866983295056E+15
Circumference
132480679.45854
Perimeter
84339820
Area
444575327352025
Diagonal
29818629.323026
Surface area
2667451964112150
Volume
9.3738507713277E+21
Space diagonal
36520213.335303
Perimeter
63254865
Area
1.9250676369132E+14
Altitude
18260106.667652
Surface area
1.9250676369132E+14
Volume
1.1047189077061E+21
Height
9939543.1076755