21032881 is an odd 8-digits composite number following 21032880
and preceding 21032882 . In scientific notation, it is written as 2.1032881 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20766564 positive integers (up to 21032881) that are relatively prime to 21032881.
21032881 has 4 divisors, whose sum is 21299200
The reverse of 21032881 is 18823012
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million thirty-two thousand eight hundred eighty-one
Scientific notation
2.1032881 × 10^7
Engineering notation
2.1032881 × 10^6
Prime Factorization
79 × 266239
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21032881
Product of the distinct prime numbers
The prime factorization of 21032881 is 79 × 266239.
Since it has a total of 2 prime factors.
8 , 6 , 68 , 95 , 823 , 661 , 3619 , 7498 , 19521 , 19488 , 158615 , 592170 , 8126804 , 6315327 , 23322134 , 95199777 , 672233282 , 77581918 , 8366388147 , 7846916262
n×2
42065762
n×3
63098643
n×4
84131524
n×5
105164405
n÷2
10516440.5
n÷3
7010960.3333333
n÷3
5258220.25
n÷5
4206576.2
n2
442382083160161
n3
9.3045697116398E+21
n4
1.9570190750112E+29
n5
4.1161749319441E+36
2 √n
4586.1619029424
3 √n
276.03633649579
4 √n
67.721207187574
5 √n
29.146053176971
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
-21032880
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 21032881 can be divided by 4 positive divisors.
The sum of these divisors (counting 21032881) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110111110110001
3
Ternary
1110120120200121
4
Quaternary
1100032332301
5
Quinary
20341023011
6
Senary
2030450241
8
Octal
120167661
10
Decimal
21032881
12
Duodecimal
7063981
16
Hexadecimal
140efb1
20
Vigesimal
6b9241
36
Base36
cit2p
md5
43ad2d440f4a12a55a22756e112db8d1
sha1
8a231bf61812d932ea64045acd90e12936678a57
sha256
5d6f4e79aec25203addd7cd5c3a5687c170afe99566bd709ee2c885f6d03901c
sha512
4004d89e04bbf2f0dcc81c1db5da9605b638cbd588e90d876ebda3edf6d22bee467612f083a856c2084b03393ff8e7ebce985910f348b6d46db9b9f5b5ee1ad8
ripemd-160
aba48ef6db6a498e80d38d4415dd3d2cdd20d92b
Diameter
42065762
Circumference
132153488.86686
Area
1.3897843025357E+15
Volume
3.8974890467869E+22
Surface area
5.5591372101428E+15
Circumference
132153488.86686
Perimeter
84131524
Area
442382083160161
Diagonal
29744985.565979
Surface area
2654292498960966
Volume
9.3045697116398E+21
Space diagonal
36430018.52155
Perimeter
63098643
Area
1.9155706109789E+14
Altitude
18215009.260775
Surface area
1.9155706109789E+14
Volume
1.0965540565206E+21
Height
9914995.1886598