21086511 is an odd 8-digits composite number following 21086510
and preceding 21086512 . In scientific notation, it is written as 2.1086511 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 13230720 positive integers (up to 21086511) that are relatively prime to 21086511.
21086511 has 4 divisors, whose sum is 21500024
The reverse of 21086511 is 11568012
Previous prime number is 51
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million eighty-six thousand five hundred eleven
Scientific notation
2.1086511 × 10^7
Engineering notation
2.1086511 × 10^6
Prime Factorization
51 × 413461
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21086511
Product of the distinct prime numbers
The prime factorization of 21086511 is 51 × 413461.
Since it has a total of 2 prime factors.
6 , 8 , 53 , 20 , 811 , 554 , 9331 , 3599 , 46546 , 14552 , 243955 , 682482 , 9270515 , 9751692 , 22245757 , 95524096 , 695128382 , 109717869 , 4013732568 , 2733662992
n×2
42173022
n×3
63259533
n×4
84346044
n×5
105432555
n÷2
10543255.5
n÷3
7028837
n÷3
5271627.75
n÷5
4217302.2
n2
444640946153121
n3
9.3759262021082E+21
n4
1.9770557099594E+29
n5
4.1689206975672E+36
2 √n
4592.005117593
3 √n
276.27075142873
4 √n
67.764335144624
5 √n
29.160901461579
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21086510
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21086511 can be divided by 4 positive divisors.
The sum of these divisors (counting 21086511) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011100000100101111
3
Ternary
1110200022020220
4
Quaternary
1100130010233
5
Quinary
20344232021
6
Senary
2031542423
8
Octal
120340457
10
Decimal
21086511
12
Duodecimal
708aa13
16
Hexadecimal
141c12f
20
Vigesimal
6bfg5b
36
Base36
cjygf
md5
7d5130146e06e3a998644688a62639ab
sha1
44fe668f61165fad85ef3bb1ac02e66ee49d8065
sha256
e1a38d5781205c66efac0cfcfb2cdd589a5056f3a1280940010b5bfc772ec357
sha512
75a5724db1cd07921efb89dca4ea5d54e1d97edcd5ab704d8ba588b056adf034cde22fee3415d5a5e49063a321281a5febd7825fa056a37797b2390c4c8e2bd8
ripemd-160
b5b7f4764a02a61e253cb82a9bea8682abcf3add
Diameter
42173022
Circumference
132490456.09488
Area
1.3968807299199E+15
Volume
3.9273787836191E+22
Surface area
5.5875229196794E+15
Circumference
132490456.09488
Perimeter
84346044
Area
444640946153121
Diagonal
29820829.839329
Surface area
2667845676918726
Volume
9.3759262021082E+21
Space diagonal
36522908.40636
Perimeter
63259533
Area
1.9253517746568E+14
Altitude
18261454.20318
Surface area
1.9253517746568E+14
Volume
1.1049634995692E+21
Height
9940276.6131098