21031849 is an odd 8-digits composite number following 21031848
and preceding 21031850 . In scientific notation, it is written as 2.1031849 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 21021520 positive integers (up to 21031849) that are relatively prime to 21031849.
21031849 has 4 divisors, whose sum is 21042180
The reverse of 21031849 is 94813012
Previous prime number is 2789
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million thirty-one thousand eight hundred forty-nine
Scientific notation
2.1031849 × 10^7
Engineering notation
2.1031849 × 10^6
Prime Factorization
2789 × 7541
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21031849
Product of the distinct prime numbers
The prime factorization of 21031849 is 2789 × 7541.
Since it has a total of 2 prime factors.
6 , 10 , 77 , 10 , 958 , 482 , 645 , 9201 , 35334 , 50598 , 602628 , 585606 , 7357938 , 7848680 , 38486079 , 75227969 , 765233711 , 348152455 , 9982821724 , 2902356186
n×2
42063698
n×3
63095547
n×4
84127396
n×5
105159245
n÷2
10515924.5
n÷3
7010616.3333333
n÷3
5257962.25
n÷5
4206369.8
n2
442338672358801
n3
9.3032001639108E+21
n4
1.9566350106415E+29
n5
4.1151652091925E+36
2 √n
4586.0493891802
3 √n
276.03182175276
4 √n
67.720376469569
5 √n
29.145767155125
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
-21031848
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 21031849 can be divided by 4 positive divisors.
The sum of these divisors (counting 21031849) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110101110101001
3
Ternary
1110120112021101
4
Quaternary
1100032232221
5
Quinary
20341004344
6
Senary
2030441401
8
Octal
120165651
10
Decimal
21031849
12
Duodecimal
7063261
16
Hexadecimal
140eba9
20
Vigesimal
6b8jc9
36
Base36
cisa1
md5
357b50e2d5bf40753fa80cd33f0aced3
sha1
bfc4be3096ab8c4e989deb9dbce84276e393f502
sha256
89cc568bb7864f97a9c1bf5e59f480a76d0d4b6ea40bb70f195f3aa6c58df7eb
sha512
0494ffd85a9bf2af880fde02a3cc68e09ce16ced7bc1bd79fff746782b426f85260ded14a8c2eceb4e185f8557d2b7f2928618695de59e0ba8b1b15639db9a7e
ripemd-160
465b9776953d6e0147d0bada32d0788a2bdaeb01
Diameter
42063698
Circumference
132147004.61962
Area
1.3896479234811E+15
Volume
3.8969153719757E+22
Surface area
5.5585916939243E+15
Circumference
132147004.61962
Perimeter
84127396
Area
442338672358801
Diagonal
29743526.097583
Surface area
2654032034152806
Volume
9.3032001639108E+21
Space diagonal
36428231.045117
Perimeter
63095547
Area
1.915382636695E+14
Altitude
18214115.522558
Surface area
1.915382636695E+14
Volume
1.0963926537729E+21
Height
9914508.6991943