21031917 is an odd 8-digits composite number following 21031916
and preceding 21031918 . In scientific notation, it is written as 2.1031917 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 13208832 positive integers (up to 21031917) that are relatively prime to 21031917.
21031917 has 16 divisors, whose sum is 29684160
The reverse of 21031917 is 71913012
Previous prime number is 1873
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million thirty-one thousand nine hundred seventeen
Scientific notation
2.1031917 × 10^7
Engineering notation
2.1031917 × 10^6
Prime Factorization
3 × 19 × 1873 × 197
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21031917
Product of the distinct prime numbers
The prime factorization of 21031917 is 3 × 19 × 1873 × 197.
Since it has a total of 4 prime factors.
3 , 5 , 71 , 73 , 778 , 980 , 355 , 6022 , 16010 , 72109 , 660250 , 103813 , 2246739 , 5655996 , 48542625 , 53362849 , 918712913 , 480100015 , 5403331191 , 3690195812
n×2
42063834
n×3
63095751
n×4
84127668
n×5
105159585
n÷2
10515958.5
n÷3
7010639
n÷3
5257979.25
n÷5
4206383.4
n2
442341532694889
n3
9.3032904012917E+21
n4
1.9566603154686E+29
n5
4.115231735213E+36
2 √n
4586.0568029627
3 √n
276.03211924037
4 √n
67.720431207743
5 √n
29.145786001871
1 , 3 , 19 , 57 , 197 , 591 , 1873 , 3743 , 5619 , 11229 , 35587 , 106761 , 368981 , 1106943 , 7010639 , 21031917
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21031916
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031917 can be divided by 16 positive divisors.
The sum of these divisors (counting 21031917) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001110101111101101
3
Ternary
1110120112100220
4
Quaternary
1100032233231
5
Quinary
20341010132
6
Senary
2030441553
8
Octal
120165755
10
Decimal
21031917
12
Duodecimal
70632b9
16
Hexadecimal
140ebed
20
Vigesimal
6b8jfh
36
Base36
cisbx
md5
f7ac6cde90153c2db21baf5aa0edf413
sha1
487865f89e16816b527076b730b7821b010fdab7
sha256
d8282adeb4db4b1b1870716838b9e7ea1a5ce64bffd1237b45b31d2508798715
sha512
e0a3dabb3fac2815874be474e1a770421edfb5d07573e33454f6ba210a1238200a16f0c9c13a538381b5a10d20494595d4a9fb0df9749188a315cd879f0075d5
ripemd-160
f2c13da28b872a6ab31904e9bc088856907acdd9
Diameter
42063834
Circumference
132147431.87622
Area
1.3896569094919E+15
Volume
3.8969531705214E+22
Surface area
5.5586276379676E+15
Circumference
132147431.87622
Perimeter
84127668
Area
442341532694889
Diagonal
29743622.264105
Surface area
2654049196169334
Volume
9.3032904012917E+21
Space diagonal
36428348.824572
Perimeter
63095751
Area
1.9153950223136E+14
Altitude
18214174.412286
Surface area
1.9153950223136E+14
Volume
1.0964032883502E+21
Height
9914540.7547018