81182009 is an odd 8-digits composite number following 81182008
and preceding 81182010 . In scientific notation, it is written as 8.1182009 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 79052800 positive integers (up to 81182009) that are relatively prime to 81182009.
81182009 has 8 divisors, whose sum is 83318760
The reverse of 81182009 is 90028118
Previous prime number is 641
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million one hundred eighty-two thousand nine
Scientific notation
8.1182009 × 10^7
Engineering notation
8.1182009 × 10^6
Prime Factorization
41 × 641 × 3089
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81182009
Product of the distinct prime numbers
The prime factorization of 81182009 is 41 × 641 × 3089.
Since it has a total of 3 prime factors.
6 , 2 , 1 , 28 , 773 , 580 , 9047 , 8004 , 15956 , 30473 , 512259 , 133664 , 5731284 , 5687838 , 14778428 , 76209500 , 529708420 , 381888350 , 5224402349 , 857419332
n×2
162364018
n×3
243546027
n×4
324728036
n×5
405910045
n÷2
40591004.5
n÷3
27060669.666667
n÷3
20295502.25
n÷5
16236401.8
n2
6590518585276081
n3
5.3503153910455E+23
n4
4.3434935222869E+31
n5
3.5261353021774E+39
2 √n
9010.105937224
3 √n
432.99870569798
4 √n
94.921577827299
5 √n
38.184926492738
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
-81182008
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 81182009 can be divided by 8 positive divisors.
The sum of these divisors (counting 81182009) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101101011110100111001
3
Ternary
12122202110210002
4
Quaternary
10311223310321
5
Quinary
131240311014
6
Senary
12020002345
8
Octal
465536471
10
Decimal
81182009
12
Duodecimal
232303b5
16
Hexadecimal
4d6bd39
20
Vigesimal
1577f09
36
Base36
1cc0ft
md5
47784eca8531fdcd863b2425d90db73c
sha1
29a5b5a7906c9ec8742c1fa28b90f730c7a8d7bb
sha256
a473ebeaa14b34728225b0a9dc2c883a78e21e2789ac5bf250321d353aad309f
sha512
f34c802b86f6a46d9f42bf7f3e53ed6da62e99e12073c47e379760c769a7e3aff0ccb05f46050560f643824eeacc67addeacbe7b9d3bf074fbc62ac1f6a8a1e0
ripemd-160
eddef6b16b01f8c0e937f008b01ec8e8eacfe084
Diameter
162364018
Circumference
510081606.15612
Area
2.070472477085E+16
Volume
2.2411348702529E+24
Surface area
8.2818899083401E+16
Circumference
510081606.15612
Perimeter
324728036
Area
6590518585276081
Diagonal
114808698.14849
Surface area
39543111511656486
Volume
5.3503153910455E+23
Space diagonal
140611364.24851
Perimeter
243546027
Area
2.8537782594813E+15
Altitude
70305682.124257
Surface area
2.8537782594813E+15
Volume
6.3054071574917E+22
Height
38269566.049498