81092009 is an odd 8-digits prime number following 81092008
and preceding 81092010 . In scientific notation, it is written as 8.1092009 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 81092008 positive integers (up to 81092009) that are relatively prime to 81092009.
81092009 has 2 divisors, whose sum is 81092010
The reverse of 81092009 is 90029018
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million ninety-two thousand nine
Scientific notation
8.1092009 × 10^7
Engineering notation
8.1092009 × 10^6
Prime Factorization
81092009
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81092009
Product of the distinct prime numbers
The prime factorization of 81092009 is 81092009.
Since it has a total of 1 prime factors.
6 , 8 , 15 , 3 , 151 , 50 , 3531 , 9467 , 43463 , 30513 , 580329 , 132243 , 1000302 , 5833932 , 94749430 , 80514253 , 872839950 , 568015143 , 6845463480 , 5343668363
n×2
162184018
n×3
243276027
n×4
324368036
n×5
405460045
n÷2
40546004.5
n÷3
27030669.666667
n÷3
20273002.25
n÷5
16218401.8
n2
6575913923656081
n3
5.3325407108034E+23
n4
4.3242643931334E+31
n5
3.5066328708635E+39
2 √n
9005.1101603478
3 √n
432.8386361875
4 √n
94.895258892886
5 √n
38.176456221026
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81092010
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40546005
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9005.1102158719
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999753367
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81092009 can be divided by 2 positive divisors.
The sum of these divisors (counting 81092009) is 81092010, the average is 40546005.
Base
System
Value
2
Binary
100110101010101110110101001
3
Ternary
12122120220022202
4
Quaternary
10311111312221
5
Quinary
131224421014
6
Senary
12014025545
8
Octal
465256651
10
Decimal
81092009
12
Duodecimal
231a82b5
16
Hexadecimal
4d55da9
20
Vigesimal
156ga09
36
Base36
1ca2zt
md5
a0a8901ccc82c19bf4f61b9b6299787a
sha1
3b976e1960e9b402707d37fe8a05e0daea58b30f
sha256
389a3ae0c37b003c99542eaed05a2eb9c6510089b7c375bb43d8ca1c5fd31f1e
sha512
a2a1f543bfb55a622f095bc5aafa94026790ca1772b7708ee4ef61581204bfec546b1d24c3c69faaca7213bfd2a80ff85bb33481e473fd7ffe1d04bedc77ee26
ripemd-160
c68738897b771d1eb04d5a6c8f477ef3c47c70da
Diameter
162184018
Circumference
509516119.47847
Area
2.0658842873197E+16
Volume
2.2336894296038E+24
Surface area
8.2635371492787E+16
Circumference
509516119.47847
Perimeter
324368036
Area
6575913923656081
Diagonal
114681418.92788
Surface area
39455483541936486
Volume
5.3325407108034E+23
Space diagonal
140455479.67583
Perimeter
243276027
Area
2.847454255493E+15
Altitude
70227739.837916
Surface area
2.847454255493E+15
Volume
6.2844594959374E+22
Height
38227139.642627