21243739 is an odd 8-digits composite number following 21243738
and preceding 21243740 . In scientific notation, it is written as 2.1243739 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 19284360 positive integers (up to 21243739) that are relatively prime to 21243739.
21243739 has 8 divisors, whose sum is 23208768
The reverse of 21243739 is 93734212
Previous prime number is 1627
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million two hundred forty-three thousand seven hundred thirty-nine
Scientific notation
2.1243739 × 10^7
Engineering notation
2.1243739 × 10^6
Prime Factorization
11 × 1627 × 1187
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21243739
Product of the distinct prime numbers
The prime factorization of 21243739 is 11 × 1627 × 1187.
Since it has a total of 3 prime factors.
1 , 8 , 89 , 52 , 698 , 164 , 8130 , 9946 , 9395 , 45119 , 602424 , 465400 , 8811351 , 3354805 , 63214488 , 83472794 , 505866402 , 375642042 , 1838754799 , 8761784025
n×2
42487478
n×3
63731217
n×4
84974956
n×5
106218695
n÷2
10621869.5
n÷3
7081246.3333333
n÷3
5310934.75
n÷5
4248747.8
n2
451296446700121
n3
9.5872239253248E+21
n4
2.0366848280416E+29
n5
4.3266800912175E+36
2 √n
4609.0930778191
3 √n
276.95570718497
4 √n
67.890301795022
5 √n
29.204259003585
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
-21243738
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 21243739 can be divided by 8 positive divisors.
The sum of these divisors (counting 21243739) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001000010011101011011
3
Ternary
1110222021221011
4
Quaternary
1101002131123
5
Quinary
20414244424
6
Senary
2035154351
8
Octal
121023533
10
Decimal
21243739
12
Duodecimal
71459b7
16
Hexadecimal
144275b
20
Vigesimal
6cf96j
36
Base36
cnbrv
md5
99b295bf272c1090dfbb62bccdd690df
sha1
fa20d9162a7a3d95380cb49507e2d76730843b42
sha256
5f24e020fd058a083405e24ee41b18d30cfc7a1b12518ae7ecbc2531f4f16ae6
sha512
9998af3fd389a5844f9fababcb685af2738e1d313fb924407d36f3369f689cec7bf6b63a6548336b1d04110b7552f785d3be63e2c8df57ddbf35465b24519b9f
ripemd-160
8b0efc6146056d4120ecc5abd0e8eef15db94873
Diameter
42487478
Circumference
133478348.75436
Area
1.4177896015443E+15
Volume
4.0158869669494E+22
Surface area
5.6711584061771E+15
Circumference
133478348.75436
Perimeter
84974956
Area
451296446700121
Diagonal
30043183.809314
Surface area
2707778680200726
Volume
9.5872239253248E+21
Space diagonal
36795235.290732
Perimeter
63731217
Area
1.9541709373998E+14
Altitude
18397617.645366
Surface area
1.9541709373998E+14
Volume
1.1298651750585E+21
Height
10014394.603105