21031237 is an odd 8-digits composite number following 21031236
and preceding 21031238 . In scientific notation, it is written as 2.1031237 × 10^7.
The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors.
There are 19855200 positive integers (up to 21031237) that are relatively prime to 21031237.
21031237 has 8 divisors, whose sum is 22240512
The reverse of 21031237 is 73213012
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million thirty-one thousand two hundred thirty-seven
Scientific notation
2.1031237 × 10^7
Engineering notation
2.1031237 × 10^6
Prime Factorization
41 × 31 × 16547
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031237
Product of the distinct prime numbers
The prime factorization of 21031237 is 41 × 31 × 16547.
Since it has a total of 3 prime factors.
7 , 10 , 92 , 41 , 451 , 198 , 2731 , 635 , 98650 , 14326 , 955238 , 742415 , 2644798 , 9507227 , 78064245 , 91662562 , 363510163 , 521593114 , 6410848712 , 8250732966
n×2
42062474
n×3
63093711
n×4
84124948
n×5
105156185
n÷2
10515618.5
n÷3
7010412.3333333
n÷3
5257809.25
n÷5
4206247.4
n2
442312929750169
n3
9.3023880537402E+21
n4
1.9564072782418E+29
n5
4.1145665137228E+36
2 √n
4585.9826645987
3 √n
276.02914433539
4 √n
67.719883820033
5 √n
29.145597532216
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
-21031236
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 21031237 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031237) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110100101000101
3
Ternary
1110120111102201
4
Quaternary
1100032211011
5
Quinary
20340444422
6
Senary
2030434501
8
Octal
120164505
10
Decimal
21031237
12
Duodecimal
7062a31
16
Hexadecimal
140e945
20
Vigesimal
6b8i1h
36
Base36
cirt1
md5
c710df96192707cee71f64d8ff249ab8
sha1
32db3c633b3fcfcf99372692493e6f7bd52fdff4
sha256
d4717e3d59ddd5a9d436c74a0118dcb5bac974a21666a7f637373faa188f3867
sha512
c4e7cc8499e59960ce498b70c3a71c3b5c5997b51d7f0a718afbc061e0de067a0e67d109997901f08f81b2f5a36de24fef7f6bd5d6ca4b60ab95484133a1b0ac
ripemd-160
60c2be045bd7aa08617e672927e6dd9f81513bc5
Diameter
42062474
Circumference
132143159.31021
Area
1.3895670506909E+15
Volume
3.8965751960629E+22
Surface area
5.5582682027636E+15
Circumference
132143159.31021
Perimeter
84124948
Area
442312929750169
Diagonal
29742660.598883
Surface area
2653877578501014
Volume
9.3023880537402E+21
Space diagonal
36427171.030022
Perimeter
63093711
Area
1.9152711679298E+14
Altitude
18213585.515011
Surface area
1.9152711679298E+14
Volume
1.0962969456714E+21
Height
9914220.1996276