81232009 is an odd 8-digits composite number following 81232008
and preceding 81232010 . In scientific notation, it is written as 8.1232009 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 81204480 positive integers (up to 81232009) that are relatively prime to 81232009.
81232009 has 4 divisors, whose sum is 81259540
The reverse of 81232009 is 90023218
Previous prime number is 3361
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighty-one million two hundred thirty-two thousand nine
Scientific notation
8.1232009 × 10^7
Engineering notation
8.1232009 × 10^6
Prime Factorization
3361 × 24169
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81232009
Product of the distinct prime numbers
The prime factorization of 81232009 is 3361 × 24169.
Since it has a total of 2 prime factors.
3 , 8 , 81 , 97 , 391 , 253 , 396 , 3489 , 50985 , 98966 , 109640 , 548596 , 986664 , 8137533 , 11025649 , 30193748 , 425763884 , 43254108 , 7926733464 , 3589549974
n×2
162464018
n×3
243696027
n×4
324928036
n×5
406160045
n÷2
40616004.5
n÷3
27077336.333333
n÷3
20308002.25
n÷5
16246401.8
n2
6598639286176081
n3
5.3602072588241E+23
n4
4.3542040429066E+31
n5
3.5370074200123E+39
2 √n
9012.8801722868
3 √n
433.0875820896
4 √n
94.936190003006
5 √n
38.189628953689
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
-81232008
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 81232009 can be divided by 4 positive divisors.
The sum of these divisors (counting 81232009) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101111000000010001001
3
Ternary
12122212000100221
4
Quaternary
10311320002021
5
Quinary
131243411014
6
Senary
12021030041
8
Octal
465700211
10
Decimal
81232009
12
Duodecimal
23255321
16
Hexadecimal
4d78089
20
Vigesimal
157e009
36
Base36
1cd30p
md5
53ab6a1ba0b5e221f5f86ebadac1c758
sha1
d120f53dfab7acd6b3cc6578a62de3efafce9e94
sha256
35f82b6d2cbc96eb833117db4a9149ee82d1dbeefbeda42986869cfada2d5280
sha512
ec284e60a1ff25eeb0181fdf98fe73df1c5b9e6a65007b5d8101a1f50b0c9c844f0c5572e20800a25a9b2b33c711990846c446043630c777f3165659e03bdfc3
ripemd-160
5ae9396d045beacf994c808c63d55d5c4431cf3c
Diameter
162464018
Circumference
510395765.42148
Area
2.073023670514E+16
Volume
2.2452783661387E+24
Surface area
8.2920946820559E+16
Circumference
510395765.42148
Perimeter
324928036
Area
6598639286176081
Diagonal
114879408.82661
Surface area
39591835717056486
Volume
5.3602072588241E+23
Space diagonal
140697966.78889
Perimeter
243696027
Area
2.8572946261192E+15
Altitude
70348983.394446
Surface area
2.8572946261192E+15
Volume
6.3170648354664E+22
Height
38293136.275538