21032561 is an odd 8-digits composite number following 21032560
and preceding 21032562 . In scientific notation, it is written as 2.1032561 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 19019520 positive integers (up to 21032561) that are relatively prime to 21032561.
21032561 has 8 divisors, whose sum is 23065824
The reverse of 21032561 is 16523012
Previous prime number is 193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million thirty-two thousand five hundred sixty-one
Scientific notation
2.1032561 × 10^7
Engineering notation
2.1032561 × 10^6
Prime Factorization
11 × 193 × 9907
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21032561
Product of the distinct prime numbers
The prime factorization of 21032561 is 11 × 193 × 9907.
Since it has a total of 3 prime factors.
4 , 2 , 22 , 61 , 2 , 753 , 9342 , 5395 , 13089 , 21028 , 706310 , 584958 , 6642168 , 5021547 , 98094924 , 69386310 , 899760763 , 154620395 , 3780596227 , 9939047764
n×2
42065122
n×3
63097683
n×4
84130244
n×5
105162805
n÷2
10516280.5
n÷3
7010853.6666667
n÷3
5258140.25
n÷5
4206512.2
n2
442368622218721
n3
9.3041450313012E+21
n4
1.9568999792369E+29
n5
4.1158618184199E+36
2 √n
4586.1270152494
3 √n
276.03493659127
4 √n
67.720949603866
5 √n
29.145964489228
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
-21032560
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 21032561 can be divided by 8 positive divisors.
The sum of these divisors (counting 21032561) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110111001110001
3
Ternary
1110120120020202
4
Quaternary
1100032321301
5
Quinary
20341020221
6
Senary
2030444545
8
Octal
120167161
10
Decimal
21032561
12
Duodecimal
7063755
16
Hexadecimal
140ee71
20
Vigesimal
6b9181
36
Base36
cistt
md5
7cdfc7b4cc426578610cfe75f947963c
sha1
95a80ed7b26e886e4dd5816c3e41b1544eedacab
sha256
e87f4aa93532c89fbd96d45d3dcb14049fb56c8f8bf24dd3241089ddd36b1c92
sha512
0d0553ac1578d076ea6064969744368ddf8117a7183afc831c2be311b7e05d93f68f6c2496af67d7237c7be046b7480124f4acd5316f7a27f03ffbf4b4c28e5a
ripemd-160
37bbb64b68aa9c32b245293c42e6bdf75c088641
Diameter
42065122
Circumference
132151478.24756
Area
1.389742013741E+15
Volume
3.8973111571026E+22
Surface area
5.5589680549639E+15
Circumference
132151478.24756
Perimeter
84130244
Area
442368622218721
Diagonal
29744533.017639
Surface area
2654211733312326
Volume
9.3041450313012E+21
Space diagonal
36429464.265292
Perimeter
63097683
Area
1.9155123233927E+14
Altitude
18214732.132646
Surface area
1.9155123233927E+14
Volume
1.0965040074627E+21
Height
9914844.3392131