21084961 is an odd 8-digits composite number following 21084960
and preceding 21084962 . In scientific notation, it is written as 2.1084961 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 21072772 positive integers (up to 21084961) that are relatively prime to 21084961.
21084961 has 4 divisors, whose sum is 21097152
The reverse of 21084961 is 16948012
Previous prime number is 10103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million eighty-four thousand nine hundred sixty-one
Scientific notation
2.1084961 × 10^7
Engineering notation
2.1084961 × 10^6
Prime Factorization
10103 × 2087
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21084961
Product of the distinct prime numbers
The prime factorization of 21084961 is 10103 × 2087.
Since it has a total of 2 prime factors.
1 , 5 , 20 , 6 , 495 , 578 , 6107 , 7891 , 75474 , 70573 , 655286 , 836328 , 8120266 , 4493526 , 58664631 , 21172230 , 60906621 , 751200064 , 1974521846 , 5773633360
n×2
42169922
n×3
63254883
n×4
84339844
n×5
105424805
n÷2
10542480.5
n÷3
7028320.3333333
n÷3
5271240.25
n÷5
4216992.2
n2
444575580371521
n3
9.3738587736859E+21
n4
1.9764744666267E+29
n5
4.1673887046321E+36
2 √n
4591.8363429025
3 √n
276.26398201174
4 √n
67.763089827003
5 √n
29.160472744601
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21084960
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21084961 can be divided by 4 positive divisors.
The sum of these divisors (counting 21084961) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011011101100100001
3
Ternary
1110200020010111
4
Quaternary
1100123230201
5
Quinary
20344204321
6
Senary
2031531321
8
Octal
120335441
10
Decimal
21084961
12
Duodecimal
7089b41
16
Hexadecimal
141bb21
20
Vigesimal
6bfc81
36
Base36
cjx9d
md5
205f7d3159e9761eb31c4ed7e377caba
sha1
f2167ed7cdd0a2bd8bf58199fab0013c7a943f8a
sha256
6b3d48628fd994db549b6ea019aa66d8c31955eb07b165d4b3b0364fa7cadcef
sha512
ad009deaa3d50041e61fdb16235720e856846a7b68e450dd363668318221db3881ee88f7fab7a8dcfbb6a81db97394de41cc91a21f4f516c916ab2803bdb776f
ripemd-160
ba1c84f82bdc21976988ee74317206b190ab1cac
Diameter
42169922
Circumference
132480717.15765
Area
1.3966753772606E+15
Volume
3.9265127812266E+22
Surface area
5.5867015090424E+15
Circumference
132480717.15765
Perimeter
84339844
Area
444575580371521
Diagonal
29818637.808308
Surface area
2667453482229126
Volume
9.3738587736859E+21
Space diagonal
36520223.727608
Perimeter
63254883
Area
1.9250687325197E+14
Altitude
18260111.863804
Surface area
1.9250687325197E+14
Volume
1.1047198507931E+21
Height
9939545.9361026