21082021 is an odd 8-digits prime number following 21082020
and preceding 21082022 . In scientific notation, it is written as 2.1082021 × 10^7.
The sum of its digits is 16. It has a total of 1 prime factors and 2 positive divisors.
There are 21082020 positive integers (up to 21082021) that are relatively prime to 21082021.
21082021 has 2 divisors, whose sum is 21082022
The reverse of 21082021 is 12028012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty-one million eighty-two thousand twenty-one
Scientific notation
2.1082021 × 10^7
Engineering notation
2.1082021 × 10^6
Prime Factorization
21082021
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21082021
Product of the distinct prime numbers
The prime factorization of 21082021 is 21082021.
Since it has a total of 1 prime factors.
8 , 8 , 81 , 89 , 436 , 970 , 7763 , 9120 , 88794 , 66160 , 58742 , 649882 , 7917618 , 2795187 , 71926503 , 44271481 , 904923357 , 340668298 , 4226653013 , 3290269629
n×2
42164042
n×3
63246063
n×4
84328084
n×5
105410105
n÷2
10541010.5
n÷3
7027340.3333333
n÷3
5270505.25
n÷5
4216404.2
n2
444451609444441
n3
9.3699381637915E+21
n4
1.9753723313775E+29
n5
4.164484097292E+36
2 √n
4591.5161983815
3 √n
276.25114104481
4 √n
67.760727552038
5 √n
29.159659496031
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21082022
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10541011
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4591.516307278
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999051324
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21082021 can be divided by 2 positive divisors.
The sum of these divisors (counting 21082021) is 21082022, the average is 10541011.
Base
System
Value
2
Binary
1010000011010111110100101
3
Ternary
1110200002002121
4
Quaternary
1100122332211
5
Quinary
20344111041
6
Senary
2031505541
8
Octal
120327645
10
Decimal
21082021
12
Duodecimal
70882b1
16
Hexadecimal
141afa5
20
Vigesimal
6bf511
36
Base36
cjuzp
md5
55e8b0af8c4b85c8570218dc7b3f3d40
sha1
6386ef4ad1c198df3e5417a64cd5fc0bbef5ade8
sha256
d5a98145127197179b9a779e79f6dcc260a5ae76964bc5a1f1616fdd8dc7a67d
sha512
30c0e6d5b0eeefb9d1161c5e863303e773914063b82de3bbe44bfac793bcb63183f2f086ee8b36d4c997fc80e9cb22ca4f308133d578d07edcb19b0414d1a195
ripemd-160
cf1ac57ffd87704379b2e9ee2718bdf01c801977
Diameter
42164042
Circumference
132462244.59285
Area
1.3962859111068E+15
Volume
3.9248705199944E+22
Surface area
5.5851436444273E+15
Circumference
132462244.59285
Perimeter
84328084
Area
444451609444441
Diagonal
29814480.020434
Surface area
2666709656666646
Volume
9.3699381637915E+21
Space diagonal
36515131.498234
Perimeter
63246063
Area
1.9245319226588E+14
Altitude
18257565.749117
Surface area
1.9245319226588E+14
Volume
1.1042578024859E+21
Height
9938160.0068115