21085246 is an even 8-digits composite number following 21085245
and preceding 21085247 . In scientific notation, it is written as 2.1085246 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 8341344 positive integers (up to 21085246) that are relatively prime to 21085246.
21085246 has 16 divisors, whose sum is 38926944
The reverse of 21085246 is 64258012
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million eighty-five thousand two hundred forty-six
Scientific notation
2.1085246 × 10^7
Engineering notation
2.1085246 × 10^6
Prime Factorization
2 × 7 × 13 × 115853
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21085246
Product of the distinct prime numbers
The prime factorization of 21085246 is 2 × 7 × 13 × 115853.
Since it has a total of 4 prime factors.
5 , 9 , 63 , 21 , 84 , 78 , 4918 , 6464 , 44381 , 52788 , 262820 , 348904 , 9293346 , 7227429 , 19935685 , 82581194 , 873770608 , 398203934 , 551793032 , 2663229720
n×2
42170492
n×3
63255738
n×4
84340984
n×5
105426230
n÷2
10542623
n÷3
7028415.3333333
n÷3
5271311.5
n÷5
4217049.2
n2
444587598880516
n3
9.374238890945E+21
n4
1.9765813307834E+29
n5
4.1676703598576E+36
2 √n
4591.8673761336
3 √n
276.26522673589
4 √n
67.763318809911
5 √n
29.160551575098
1 , 2 , 7 , 13 , 14 , 26 , 91 , 182 , 115853 , 231706 , 810971 , 1506089 , 1621942 , 3012178 , 10542623 , 21085246
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
-21085245
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 21085246 can be divided by 16 positive divisors.
The sum of these divisors (counting 21085246) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011011110000111110
3
Ternary
1110200020112001
4
Quaternary
1100123300332
5
Quinary
20344211441
6
Senary
2031532514
8
Octal
120336076
10
Decimal
21085246
12
Duodecimal
708a13a
16
Hexadecimal
141bc3e
20
Vigesimal
6bfd26
36
Base36
cjxha
md5
d53953e417698d62b0e83f4b35431324
sha1
5eedb91928f93746cb29a7a0d7f37dc2547da6b3
sha256
610d9496de6553d1d8554182394b95042e2a7f0c49d2d9ea8ce2590485e74a78
sha512
b33df384aa8301182c041aa92264d206a9e172e88b9114048757d33446f5a62c67ba737d363c08117dd28138f2808b190f68da2dad81559fb2c64ba3ca62ed4c
ripemd-160
37e5ea7751c158af04387d8325f5fb00f3a7eb63
Diameter
42170492
Circumference
132482507.86547
Area
1.3967131345202E+15
Volume
3.9266720043718E+22
Surface area
5.5868525380806E+15
Circumference
132482507.86547
Perimeter
84340984
Area
444587598880516
Diagonal
29819040.859173
Surface area
2667525593283096
Volume
9.374238890945E+21
Space diagonal
36520717.362088
Perimeter
63255738
Area
1.9251207741903E+14
Altitude
18260358.681044
Surface area
1.9251207741903E+14
Volume
1.1047646480416E+21
Height
9939680.286391