81132009 is an odd 8-digits composite number following 81132008
and preceding 81132010 . In scientific notation, it is written as 8.1132009 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 45107712 positive integers (up to 81132009) that are relatively prime to 81132009.
81132009 has 16 divisors, whose sum is 126972288
The reverse of 81132009 is 90023118
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
eighty-one million one hundred thirty-two thousand nine
Scientific notation
8.1132009 × 10^7
Engineering notation
8.1132009 × 10^6
Prime Factorization
3 × 37 × 7 × 104417
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81132009
Product of the distinct prime numbers
The prime factorization of 81132009 is 3 × 37 × 7 × 104417.
Since it has a total of 4 prime factors.
7 , 9 , 12 , 91 , 98 , 777 , 5950 , 2817 , 7831 , 45229 , 243224 , 416691 , 6427974 , 1733250 , 23155437 , 89352260 , 381161938 , 929788468 , 6410599589 , 8890590579
n×2
162264018
n×3
243396027
n×4
324528036
n×5
405660045
n÷2
40566004.5
n÷3
27044003
n÷3
20283002.25
n÷5
16226401.8
n2
6582402884376081
n3
5.3404357005683E+23
n4
4.3328027732243E+31
n5
3.5152899359246E+39
2 √n
9007.330847704
3 √n
432.90979280621
4 √n
94.906958900304
5 √n
38.180221714219
1 , 3 , 7 , 21 , 37 , 111 , 259 , 777 , 104417 , 313251 , 730919 , 2192757 , 3863429 , 11590287 , 27044003 , 81132009
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81132008
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81132009 can be divided by 16 positive divisors.
The sum of these divisors (counting 81132009) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101011111100111101001
3
Ternary
12122122221012020
4
Quaternary
10311133213221
5
Quinary
131232211014
6
Senary
12014535053
8
Octal
465374751
10
Decimal
81132009
12
Duodecimal
23207489
16
Hexadecimal
4d5f9e9
20
Vigesimal
1571a09
36
Base36
1caxux
md5
67fccb4d638327d6d74cdb11518674eb
sha1
3dca35aed154905e46253c0337b1db67a261beba
sha256
139b4e5ba8a183afc285358174b41195aa505a32b378f4c25dc58f5bb55e3101
sha512
6d2fceab0c8c45d4e57f09f38443b9c6270c1ea506cb68be847619f1b790f783815995a26befc36b578dfcc87b423c0d76c86dfdf9daf8e1c3d468d4aab0f365
ripemd-160
ad8c3e08ec61f69794c7fc658f4e8cf6bb993bd4
Diameter
162264018
Circumference
509767446.89076
Area
2.0679228544524E+16
Volume
2.2369964751832E+24
Surface area
8.2716914178097E+16
Circumference
509767446.89076
Perimeter
324528036
Area
6582402884376081
Diagonal
114737987.47038
Surface area
39494417306256486
Volume
5.3404357005683E+23
Space diagonal
140524761.70814
Perimeter
243396027
Area
2.8502640579068E+15
Altitude
70262380.854068
Surface area
2.8502640579068E+15
Volume
6.2937638306042E+22
Height
38245995.823459