21143965 is an odd 8-digits composite number following 21143964
and preceding 21143966 . In scientific notation, it is written as 2.1143965 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 16915168 positive integers (up to 21143965) that are relatively prime to 21143965.
21143965 has 4 divisors, whose sum is 25372764
The reverse of 21143965 is 56934112
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million one hundred forty-three thousand nine hundred sixty-five
Scientific notation
2.1143965 × 10^7
Engineering notation
2.1143965 × 10^6
Prime Factorization
5 × 4228793
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21143965
Product of the distinct prime numbers
The prime factorization of 21143965 is 5 × 4228793.
Since it has a total of 2 prime factors.
1 , 10 , 44 , 40 , 680 , 365 , 8964 , 3545 , 61399 , 92215 , 777751 , 368155 , 2203896 , 2106751 , 23971 , 37193163 , 785928199 , 616019869 , 6951242050 , 4962211952
n×2
42287930
n×3
63431895
n×4
84575860
n×5
105719825
n÷2
10571982.5
n÷3
7047988.3333333
n÷3
5285991.25
n÷5
4228793
n2
447067255921225
n3
9.4527744118444E+21
n4
1.9986913131693E+29
n5
4.2260259171457E+36
2 √n
4598.2567348942
3 √n
276.52144037042
4 √n
67.81044709257
5 √n
29.176774997309
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
-21143964
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 21143965 can be divided by 4 positive divisors.
The sum of these divisors (counting 21143965) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000101010000110011101
3
Ternary
1110210020001211
4
Quaternary
1100222012131
5
Quinary
20403101330
6
Senary
2033104421
8
Octal
120520635
10
Decimal
21143965
12
Duodecimal
70b8111
16
Hexadecimal
142a19d
20
Vigesimal
6c2ji5
36
Base36
cl6sd
md5
bb5767c9aba7e1644372d7c7a4d1b806
sha1
dbce612a92bd4a6119260cfd8acfe66ee3bcd9d6
sha256
f26ac6439810a1f60962c3145d23e1d65b49c3234b2b8e0e88d1292446eb9e83
sha512
8c0318ad3cc12fe9831cf5ea781312684491730197d104a9b318ebfcfd90603deae69c7a5536bbf9f1c62e08309c9edfdd4436c695fdffc0396fa0354ad8ad7c
ripemd-160
85f659ac7c6ecdbf942be28d53453121713fcb43
Diameter
42287930
Circumference
132851450.22352
Area
1.4045032068627E+15
Volume
3.9595688864389E+22
Surface area
5.6180128274507E+15
Circumference
132851450.22352
Perimeter
84575860
Area
447067255921225
Diagonal
29902082.065342
Surface area
2682403535527350
Volume
9.4527744118444E+21
Space diagonal
36622421.653458
Perimeter
63431895
Area
1.9358580041399E+14
Altitude
18311210.826729
Surface area
1.9358580041399E+14
Volume
1.1140201479403E+21
Height
9967360.6884473