21432561 is an odd 8-digits composite number following 21432560
and preceding 21432562 . In scientific notation, it is written as 2.1432561 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 14157072 positive integers (up to 21432561) that are relatively prime to 21432561.
21432561 has 8 divisors, whose sum is 28839360
The reverse of 21432561 is 16523412
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million four hundred thirty-two thousand five hundred sixty-one
Scientific notation
2.1432561 × 10^7
Engineering notation
2.1432561 × 10^6
Prime Factorization
3 × 109 × 65543
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21432561
Product of the distinct prime numbers
The prime factorization of 21432561 is 3 × 109 × 65543.
Since it has a total of 3 prime factors.
2 , 6 , 11 , 91 , 778 , 724 , 4333 , 712 , 75539 , 89852 , 10493 , 943292 , 6093477 , 2918531 , 4697170 , 15441876 , 741079589 , 916627141 , 7499796560 , 4203897967
n×2
42865122
n×3
64297683
n×4
85730244
n×5
107162805
n÷2
10716280.5
n÷3
7144187
n÷3
5358140.25
n÷5
4286512.2
n2
459354671018721
n3
9.8451470072437E+21
n4
2.1100671378672E+29
n5
4.5224142646434E+36
2 √n
4629.5314017728
3 √n
277.77384864961
4 √n
68.040659915765
5 √n
29.255990997582
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
-21432560
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 21432561 can be divided by 8 positive divisors.
The sum of these divisors (counting 21432561) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001110000100011110001
3
Ternary
1111022212221120
4
Quaternary
1101300203301
5
Quinary
20441320221
6
Senary
2043212453
8
Octal
121604361
10
Decimal
21432561
12
Duodecimal
7217129
16
Hexadecimal
14708f1
20
Vigesimal
6dj181
36
Base36
crdgx
md5
a93a692be2670c4b8fe3f12b35cd0517
sha1
53ae1abb5b01f761bffda9d36ea821e21e250f5b
sha256
3f94644988b65899a7977bb0491c7df9bebe8be01d163a21dd5c2121766bd5b7
sha512
fa9bea6ef7a7de4ae46b2792a39be9ede9cfe6ae5f73d9132fe79a013bd60d8ef438601274738023135972ebd406400e13e9d6d2a500990caa745e3aa26c2631
ripemd-160
28f7f7b4b9c8ea1a12ab09a7645976d1aced48c1
Diameter
42865122
Circumference
134664752.37043
Area
1.4431052598646E+15
Volume
4.1239255348624E+22
Surface area
5.7724210394583E+15
Circumference
134664752.37043
Perimeter
85730244
Area
459354671018721
Diagonal
30310218.442589
Surface area
2756128026112326
Volume
9.8451470072437E+21
Space diagonal
37122284.588319
Perimeter
64297683
Area
1.9890640722463E+14
Altitude
18561142.29416
Surface area
1.9890640722463E+14
Volume
1.1602617017667E+21
Height
10103406.14753