21086917 is an odd 8-digits composite number following 21086916
and preceding 21086918 . In scientific notation, it is written as 2.1086917 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 20726160 positive integers (up to 21086917) that are relatively prime to 21086917.
21086917 has 8 divisors, whose sum is 21450240
The reverse of 21086917 is 71968012
Previous prime number is 293
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million eighty-six thousand nine hundred seventeen
Scientific notation
2.1086917 × 10^7
Engineering notation
2.1086917 × 10^6
Prime Factorization
79 × 293 × 911
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21086917
Product of the distinct prime numbers
The prime factorization of 21086917 is 79 × 293 × 911.
Since it has a total of 3 prime factors.
8 , 10 , 3 , 55 , 735 , 161 , 78 , 48 , 18200 , 85622 , 830305 , 577850 , 7269648 , 1160511 , 27721727 , 32191463 , 628411648 , 647840657 , 449921625 , 7984070982
n×2
42173834
n×3
63260751
n×4
84347668
n×5
105434585
n÷2
10543458.5
n÷3
7028972.3333333
n÷3
5271729.25
n÷5
4217383.4
n2
444658068564889
n3
9.3764677852081E+21
n4
1.9772079793986E+29
n5
4.1693220553315E+36
2 √n
4592.049324648
3 √n
276.27252452442
4 √n
67.764661326151
5 √n
29.161013753601
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
-21086916
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 21086917 can be divided by 8 positive divisors.
The sum of these divisors (counting 21086917) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011100001011000101
3
Ternary
1110200022210221
4
Quaternary
1100130023011
5
Quinary
20344240132
6
Senary
2031544341
8
Octal
120341305
10
Decimal
21086917
12
Duodecimal
708b0b1
16
Hexadecimal
141c2c5
20
Vigesimal
6bfh5h
36
Base36
cjyrp
md5
0327cac17f41b14e8ec7cb06aeb61679
sha1
ab14eb171af8e2f1d67a1650c8bc4da9a0780ae4
sha256
0491a460bf5e0001466c154c854b4378bccbdaf7052d650fd5aa9b4fb89f3afa
sha512
489b808d297306903261a8ed14a328ed6745471047ee807f47e82412f1bf82556f63cd0a1a1e25a2209d091e29ca1c897a6538a4926a2d32a1e4e6d2db07c4c8
ripemd-160
01ee1dfe16e5311419e8ed8768240daeef16dad6
Diameter
42173834
Circumference
132493007.06812
Area
1.3969345215629E+15
Volume
3.9276056414175E+22
Surface area
5.5877380862515E+15
Circumference
132493007.06812
Perimeter
84347668
Area
444658068564889
Diagonal
29821404.010036
Surface area
2667948411389334
Volume
9.3764677852081E+21
Space diagonal
36523611.618988
Perimeter
63260751
Area
1.9254259168746E+14
Altitude
18261805.809494
Surface area
1.9254259168746E+14
Volume
1.1050273257496E+21
Height
9940468.0033453