81144963 is an odd 8-digits composite number following 81144962
and preceding 81144964 . In scientific notation, it is written as 8.1144963 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 53699328 positive integers (up to 81144963) that are relatively prime to 81144963.
81144963 has 16 divisors, whose sum is 121097760
The reverse of 81144963 is 36944118
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
eighty-one million one hundred forty-four thousand nine hundred sixty-three
Scientific notation
8.1144963 × 10^7
Engineering notation
8.1144963 × 10^6
Prime Factorization
3 × 9 × 137 × 21937
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81144963
Product of the distinct prime numbers
The prime factorization of 81144963 is 3 × 9 × 137 × 21937.
Since it has a total of 4 prime factors.
5 , 4 , 71 , 65 , 985 , 958 , 7906 , 2611 , 3365 , 59402 , 796749 , 226252 , 2350313 , 3715038 , 37295997 , 23026776 , 421931817 , 969411849 , 45238114 , 5136889996
n×2
162289926
n×3
243434889
n×4
324579852
n×5
405724815
n÷2
40572481.5
n÷3
27048321
n÷3
20286240.75
n÷5
16228992.6
n2
6584505020271369
n3
5.3429941624323E+23
n4
4.3355706361979E+31
n5
3.5180971885816E+39
2 √n
9008.0498999506
3 √n
432.93283186354
4 √n
94.910747020296
5 √n
38.181440850818
1 , 3 , 9 , 27 , 137 , 411 , 1233 , 3699 , 21937 , 65811 , 197433 , 592299 , 3005369 , 9016107 , 27048321 , 81144963
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
-81144962
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 81144963 can be divided by 16 positive divisors.
The sum of these divisors (counting 81144963) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101100010110010000011
3
Ternary
12122200120222000
4
Quaternary
10311202302003
5
Quinary
131233114323
6
Senary
12015115043
8
Octal
465426203
10
Decimal
81144963
12
Duodecimal
23212a83
16
Hexadecimal
4d62c83
20
Vigesimal
1573283
36
Base36
1cb7ur
md5
674ae0bb8020028d6c93a5e24da14e40
sha1
06e68e499256cfd4d70a9ad9018c7395c001be11
sha256
a2475124c87d99acddec9407ab503ccb54511e3685d4d39b4213f3908e7fd8ac
sha512
218c7f235a378e5eb77f294426e18b5434d513d07a660b1208d88085cbb3348e60d327748f2d42c8f7f672b5c34aafa9cccaab2e6d4177f98681dea2490be419
ripemd-160
b9f426d1bfff596323e700d9edeb135665b8e1e1
Diameter
162289926
Circumference
509848839.27323
Area
2.068583259921E+16
Volume
2.2380681611827E+24
Surface area
8.2743330396839E+16
Circumference
509848839.27323
Perimeter
324579852
Area
6584505020271369
Diagonal
114756307.19286
Surface area
39507030121628214
Volume
5.3429941624323E+23
Space diagonal
140547198.6943
Perimeter
243434889
Area
2.8511743094506E+15
Altitude
70273599.347148
Surface area
2.8511743094506E+15
Volume
6.2967790068267E+22
Height
38252102.397621