81497237 is an odd 8-digits prime number following 81497236
and preceding 81497238 . In scientific notation, it is written as 8.1497237 × 10^7.
The sum of its digits is 41. It has a total of 1 prime factors and 2 positive divisors.
There are 81497236 positive integers (up to 81497237) that are relatively prime to 81497237.
81497237 has 2 divisors, whose sum is 81497238
The reverse of 81497237 is 73279418
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 41 Digital Root 5
Name
eighty-one million four hundred ninety-seven thousand two hundred thirty-seven
Scientific notation
8.1497237 × 10^7
Engineering notation
8.1497237 × 10^6
Prime Factorization
81497237
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
81497237 Product of the distinct prime numbers
The prime factorization of 81497237 is 81497237.
Since it has a total of 1 prime factors.
9 , 6 , 88 , 71 , 197 , 954 , 8728 , 760 , 78375 , 86139 , 896821 , 663942 , 6278719 , 8966418 , 19726796 , 43444748 , 489797230 , 782209833 , 2245343899 , 5753134525
n×2
162994474
n×3
244491711
n×4
325988948
n×5
407486185
n÷2
40748618.5
n÷3
27165745.666667
n÷3
20374309.25
n÷5
16299447.4
n2
6641799638634169
n3
5.4128831925628E+23
n4
4.4113502439761E+31
n5
3.5951285632333E+39
2 √n9027.5820129202
3 √n433.55842342743
4 √n95.013588569847
5 √n38.214534791166
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
81497238 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
40748619 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
9027.582068306 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999754593 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81497237 can be divided by 2 positive divisors.
The sum of these divisors (counting 81497237) is 81497238, the average is 40748619.
Base
System
Value
2
Binary
100110110111000110010010101
3
Ternary
12200100111012012
4
Quaternary
10312320302111
5
Quinary
131330402422
6
Senary
12030434005
8
Octal
466706225
10
Decimal
81497237
12
Duodecimal
23362905
16
Hexadecimal
4db8c95
20
Vigesimal
159731h
36
Base36
1ciro5
md5
e68ab6faa0e1cb85227f5f48a19f0878
sha1
95241da272decdc420d347108c3a0155ac4bcf36
sha256
9b38fe679f55e8b69f67784350010874ab76f8af96b065e4eda2916577fd51e7
sha512
fe7ccb5eee4fdd071cc56dd7fc7980a5a1626f6f67b535359973df47794e5745b4e30d61dd5ab7b09e2b6b6390a2c0736627457e89659c9ed8d06f4e3f653fa2
ripemd-160
14392a4289dd2181ed9271c5857eacec21866ec5
Diameter
162994474
Circumference
512062242.09413
Area
2.0865828951348E+16
Volume
2.267343209666E+24
Surface area
8.3463315805394E+16
Circumference
512062242.09413
Perimeter
325988948
Area
6641799638634169
Diagonal
115254497.86133
Surface area
39850797831805014
Volume
5.4128831925628E+23
Space diagonal
141157355.16048
Perimeter
244491711
Area
2.8759836069517E+15
Altitude
70578677.580241
Surface area
2.8759836069517E+15
Volume
6.3791440187198E+22
Height
38418165.953778