21031910 is an even 8-digits composite number following 21031909
and preceding 21031911 . In scientific notation, it is written as 2.1031910 × 10^7.
The sum of its digits is 17. It has a total of 3 prime factors and 8 positive divisors.
There are 8185248 positive integers (up to 21031910) that are relatively prime to 21031910.
21031910 has 8 divisors, whose sum is 31718952
The reverse of 21031910 is 01913012
Previous prime number is 185
Is Prime? no
Number parity even
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million thirty-one thousand nine hundred ten
Scientific notation
2.1031910 × 10^7
Engineering notation
2.1031910 × 10^6
Prime Factorization
2 × 185 × 56843
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031910
Product of the distinct prime numbers
The prime factorization of 21031910 is 2 × 185 × 56843.
Since it has a total of 3 prime factors.
2 , 10 , 97 , 98 , 79 , 493 , 8378 , 8737 , 69332 , 77876 , 231946 , 577144 , 5451475 , 1911350 , 95208428 , 47505250 , 200321195 , 312836637 , 3428458131 , 8511504099
n×2
42063820
n×3
63095730
n×4
84127640
n×5
105159550
n÷2
10515955
n÷3
7010636.6666667
n÷3
5257977.5
n÷5
4206382
n2
442341238248100
n3
9.3032811121226E+21
n4
1.9566577105486E+29
n5
4.1152248869065E+36
2 √n
4586.0560397797
3 √n
276.03208861668
4 √n
67.720425572937
5 √n
29.145784061767
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
-21031909
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 21031910 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031910) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110101111100110
3
Ternary
1110120112100122
4
Quaternary
1100032233212
5
Quinary
20341010120
6
Senary
2030441542
8
Octal
120165746
10
Decimal
21031910
12
Duodecimal
70632b2
16
Hexadecimal
140ebe6
20
Vigesimal
6b8jfa
36
Base36
cisbq
md5
5b5f9767e08484bd0dc8fae503f9b310
sha1
6087c36c8374b9dc7144d92fa97b3debba2254e4
sha256
3995b78e8633dcb1c39973b0ab676da3e1b0a39543a8a6c37e20855e7d8a46e3
sha512
ca0335809c4a93853772b0d8098fca8f6e4d37b720e544017dac25e762ae5c18252bfd389dcc3548b28463d5fcb69f0f40beb951648a0845a072fd2d73fb7805
ripemd-160
ef8ce9b7fb0c4ef9726b2b96c01e8f19dcd052c5
Diameter
42063820
Circumference
132147387.89392
Area
1.38965598446E+15
Volume
3.8969492794833E+22
Surface area
5.5586239378402E+15
Circumference
132147387.89392
Perimeter
84127640
Area
442341238248100
Diagonal
29743612.36461
Surface area
2654047429488600
Volume
9.3032811121226E+21
Space diagonal
36428336.700216
Perimeter
63095730
Area
1.9153937473216E+14
Altitude
18214168.350108
Surface area
1.9153937473216E+14
Volume
1.0964021936111E+21
Height
9914537.4548701