21031869 is an odd 8-digits composite number following 21031868
and preceding 21031870 . In scientific notation, it is written as 2.1031869 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13985136 positive integers (up to 21031869) that are relatively prime to 21031869.
21031869 has 8 divisors, whose sum is 28114720
The reverse of 21031869 is 96813012
Previous prime number is 397
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million thirty-one thousand eight hundred sixty-nine
Scientific notation
2.1031869 × 10^7
Engineering notation
2.1031869 × 10^6
Prime Factorization
3 × 397 × 17659
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031869
Product of the distinct prime numbers
The prime factorization of 21031869 is 3 × 397 × 17659.
Since it has a total of 3 prime factors.
4 , 6 , 88 , 57 , 862 , 44 , 8118 , 4132 , 86379 , 38179 , 273902 , 528352 , 964472 , 3256291 , 49297777 , 17175839 , 635562939 , 31702318 , 1424525976 , 6097870011
n×2
42063738
n×3
63095607
n×4
84127476
n×5
105159345
n÷2
10515934.5
n÷3
7010623
n÷3
5257967.25
n÷5
4206373.8
n2
442339513633161
n3
9.3032267042564E+21
n4
1.9566424532122E+29
n5
4.1151847755798E+36
2 √n
4586.0515697057
3 √n
276.03190924918
4 √n
67.720392569046
5 √n
29.145772698291
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
-21031868
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 21031869 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031869) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110101110111101
3
Ternary
1110120112022010
4
Quaternary
1100032232331
5
Quinary
20341004434
6
Senary
2030441433
8
Octal
120165675
10
Decimal
21031869
12
Duodecimal
7063279
16
Hexadecimal
140ebbd
20
Vigesimal
6b8jd9
36
Base36
cisal
md5
d874a97c83cb4570a688105d0ad6655a
sha1
1cc18d99aade952d6633d7fea165870ce58fe027
sha256
ec62624549d49f04eaa40e68a5d2ef447ad38a19949775812e735d9c584aae7b
sha512
d13aebb2c5e3dba85ee2cd0a2b200c5e7cf265bb3a83c060a47d73158be9e8d74c692d0b893d561f4ce4746a3cd3d3403fdb3edabe540357ee50869648df8ee3
ripemd-160
136dada63bd75c712be9fbbee25d531146904081
Diameter
42063738
Circumference
132147130.28333
Area
1.3896505664224E+15
Volume
3.8969264891696E+22
Surface area
5.5586022656897E+15
Circumference
132147130.28333
Perimeter
84127476
Area
442339513633161
Diagonal
29743554.381854
Surface area
2654037081798966
Volume
9.3032267042564E+21
Space diagonal
36428265.686133
Perimeter
63095607
Area
1.9153862795199E+14
Altitude
18214132.843066
Surface area
1.9153862795199E+14
Volume
1.0963957815826E+21
Height
9914518.1272848