81232005 is an odd 8-digits composite number following 81232004
and preceding 81232006 . In scientific notation, it is written as 8.1232005 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 43323728 positive integers (up to 81232005) that are relatively prime to 81232005.
81232005 has 8 divisors, whose sum is 129971232
The reverse of 81232005 is 50023218
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
eighty-one million two hundred thirty-two thousand five
Scientific notation
8.1232005 × 10^7
Engineering notation
8.1232005 × 10^6
Prime Factorization
3 × 5 × 5415467
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81232005
Product of the distinct prime numbers
The prime factorization of 81232005 is 3 × 5 × 5415467.
Since it has a total of 3 prime factors.
10 , 5 , 100 , 40 , 17 , 547 , 270 , 7152 , 19435 , 43766 , 579835 , 312300 , 9156880 , 3614441 , 277127 , 59910539 , 600041511 , 386457787 , 8229873939 , 4709875276
n×2
162464010
n×3
243696015
n×4
324928020
n×5
406160025
n÷2
40616002.5
n÷3
27077335
n÷3
20308001.25
n÷5
16246401
n2
6598638636320025
n3
5.3602064669874E+23
n4
4.3542031852735E+31
n5
3.5370065491716E+39
2 √n
9012.8799503821
3 √n
433.08757498094
4 √n
94.936188834301
5 √n
38.189628577585
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
-81232004
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 81232005 can be divided by 8 positive divisors.
The sum of these divisors (counting 81232005) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101111000000010000101
3
Ternary
12122212000100210
4
Quaternary
10311320002011
5
Quinary
131243411010
6
Senary
12021030033
8
Octal
465700205
10
Decimal
81232005
12
Duodecimal
23255319
16
Hexadecimal
4d78085
20
Vigesimal
157e005
36
Base36
1cd30l
md5
45478c0e773546dd274f23b804847a2a
sha1
b28404a0b124ceb06566e4d8b62b7075c3e20532
sha256
91440fb223e2dc3729223ab975b9f3aa4b2663c3b2c58ecfecfbe1a38492351e
sha512
d84edb5f69ef1f3ab8759af5b8b548cdb8fefcefead0044b5f15e97322f415df6af957eb7059a67fd94a5df4951957f42760342dfa962d5b441226cc838e17fe
ripemd-160
af1c466d70bf53c19d1276443bacd11f4c790627
Diameter
162464010
Circumference
510395740.28874
Area
2.0730234663557E+16
Volume
2.245278034455E+24
Surface area
8.2920938654227E+16
Circumference
510395740.28874
Perimeter
324928020
Area
6598638636320025
Diagonal
114879403.16976
Surface area
39591831817920150
Volume
5.3602064669874E+23
Space diagonal
140697959.86069
Perimeter
243696015
Area
2.8572943447233E+15
Altitude
70348979.930345
Surface area
2.8572943447233E+15
Volume
6.317063902278E+22
Height
38293134.38992