21073281 is an odd 8-digits composite number following 21073280
and preceding 21073282 . In scientific notation, it is written as 2.1073281 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13990080 positive integers (up to 21073281) that are relatively prime to 21073281.
21073281 has 8 divisors, whose sum is 28215264
The reverse of 21073281 is 18237012
Previous prime number is 241
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million seventy-three thousand two hundred eighty-one
Scientific notation
2.1073281 × 10^7
Engineering notation
2.1073281 × 10^6
Prime Factorization
3 × 241 × 29147
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21073281
Product of the distinct prime numbers
The prime factorization of 21073281 is 3 × 241 × 29147.
Since it has a total of 3 prime factors.
5 , 10 , 45 , 41 , 357 , 391 , 5545 , 9911 , 41125 , 43802 , 201582 , 580579 , 7225599 , 6681677 , 22217067 , 31099748 , 78037239 , 170572745 , 5073645877 , 4819746511
n×2
42146562
n×3
63219843
n×4
84293124
n×5
105366405
n÷2
10536640.5
n÷3
7024427
n÷3
5268320.25
n÷5
4214656.2
n2
444083172104961
n3
9.3582894731392E+21
n4
1.972098637468E+29
n5
4.1558588747081E+36
2 √n
4590.5643443917
3 √n
276.21296050698
4 √n
67.75370354742
5 √n
29.157241343646
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
-21073280
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 21073281 can be divided by 8 positive divisors.
The sum of these divisors (counting 21073281) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011000110110000001
3
Ternary
1110122122002220
4
Quaternary
1100120312001
5
Quinary
20343321111
6
Senary
2031401253
8
Octal
120306601
10
Decimal
21073281
12
Duodecimal
7083229
16
Hexadecimal
1418d81
20
Vigesimal
6be341
36
Base36
cjo8x
md5
4ba5397bfc762b992c05819662a6540d
sha1
b8aba94dfaea3c8ba30ad631e9ffdf0018cbea6f
sha256
e95dbdfda57459b85b03207ec829c38fe213aa38ef93a887f2ed1a773ba7223b
sha512
0cc31bce36ba6443d4ccb9f804148657ff7b5d75b5e1ac8be34c07fb9a95452f1fdcb6894ea3e438178e6e11235dd8256bb86239fc7fb3863ac3f96b2f8315d0
ripemd-160
f2e18b18b917ebbc94435bbf40648e87295db66d
Diameter
42146562
Circumference
132407329.55327
Area
1.3951284310678E+15
Volume
3.9199911278641E+22
Surface area
5.5805137242712E+15
Circumference
132407329.55327
Perimeter
84293124
Area
444083172104961
Diagonal
29802119.793899
Surface area
2664499032629766
Volume
9.3582894731392E+21
Space diagonal
36499993.374176
Perimeter
63219843
Area
1.9229365421804E+14
Altitude
18249996.687088
Surface area
1.9229365421804E+14
Volume
1.1028849911272E+21
Height
9934039.9312998