21000531 is an odd 8-digits composite number following 21000530
and preceding 21000532 . In scientific notation, it is written as 2.1000531 × 10^7.
The sum of its digits is 12. It has a total of 3 prime factors and 8 positive divisors.
There are 13770720 positive integers (up to 21000531) that are relatively prime to 21000531.
21000531 has 8 divisors, whose sum is 28459984
The reverse of 21000531 is 13500012
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 12
Digital Root 3
Name
twenty-one million five hundred thirty-one
Scientific notation
2.1000531 × 10^7
Engineering notation
2.1000531 × 10^6
Prime Factorization
3 × 61 × 114757
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000531
Product of the distinct prime numbers
The prime factorization of 21000531 is 3 × 61 × 114757.
Since it has a total of 3 prime factors.
10 , 8 , 85 , 4 , 504 , 258 , 3868 , 3880 , 15682 , 95249 , 831456 , 632612 , 4423220 , 2392875 , 74475572 , 91489124 , 105820770 , 641957232 , 4643630731 , 1649513563
n×2
42001062
n×3
63001593
n×4
84002124
n×5
105002655
n÷2
10500265.5
n÷3
7000177
n÷3
5250132.75
n÷5
4200106.2
n2
441022302281961
n3
9.2617025307637E+21
n4
1.9450067111008E+29
n5
4.0846173731681E+36
2 √n
4582.6336314395
3 √n
275.89474299746
4 √n
67.695152200431
5 √n
29.137081933912
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
-21000530
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 21000531 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000531) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111000101010011
3
Ternary
1110111221022110
4
Quaternary
1100013011103
5
Quinary
20334004111
6
Senary
2030040403
8
Octal
120070523
10
Decimal
21000531
12
Duodecimal
7049103
16
Hexadecimal
1407153
20
Vigesimal
6b516b
36
Base36
ci443
md5
5249627c4bed20ba58e14c625969ceb8
sha1
a70bd12fb1dbadc3351073b1bb1c7097a91fc1c6
sha256
8393376362d8fee8b50c50fc5ca95f272b688785f8010d6ccb7e56129aef92a7
sha512
5b43d1ca32b7b5818ea36ed5b6665bbdc18f0bbd278505d315596fd9f74ebb2f3be57cc956c66a0685864ee61d4bca5f3ddda1c94e79ea88a10b3fbb592c2baa
ripemd-160
aec619607f147203f6a7762767976c8aac6c346d
Diameter
42001062
Circumference
131950227.82217
Area
1.3855124249183E+15
Volume
3.8795328840508E+22
Surface area
5.5420496996731E+15
Circumference
131950227.82217
Perimeter
84002124
Area
441022302281961
Diagonal
29699235.757237
Surface area
2646133813691766
Volume
9.2617025307637E+21
Space diagonal
36373986.677925
Perimeter
63001593
Area
1.9096825870584E+14
Altitude
18186993.338963
Surface area
1.9096825870584E+14
Volume
1.0915021108059E+21
Height
9899745.2524122