81093073 is an odd 8-digits composite number following 81093072
and preceding 81093074 . In scientific notation, it is written as 8.1093073 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 80946928 positive integers (up to 81093073) that are relatively prime to 81093073.
81093073 has 4 divisors, whose sum is 81239220
The reverse of 81093073 is 37039018
Previous prime number is 557
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million ninety-three thousand seventy-three
Scientific notation
8.1093073 × 10^7
Engineering notation
8.1093073 × 10^6
Prime Factorization
557 × 145589
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81093073
Product of the distinct prime numbers
The prime factorization of 81093073 is 557 × 145589.
Since it has a total of 2 prime factors.
7 , 5 , 6 , 63 , 913 , 655 , 5066 , 8251 , 74286 , 83479 , 881710 , 84591 , 3612373 , 3666121 , 68817397 , 24330718 , 888566891 , 5003931 , 7834026153 , 5155699031
n×2
162186146
n×3
243279219
n×4
324372292
n×5
405465365
n÷2
40546536.5
n÷3
27031024.333333
n÷3
20273268.25
n÷5
16218614.6
n2
6576086488583329
n3
5.33275061673E+23
n4
4.3244913505328E+31
n5
3.5068629277663E+39
2 √n
9005.1692377212
3 √n
432.84052925646
4 √n
94.895570169114
5 √n
38.17655640238
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81093072
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81093073 can be divided by 4 positive divisors.
The sum of these divisors (counting 81093073) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101010110000111010001
3
Ternary
12122120221210011
4
Quaternary
10311112013101
5
Quinary
131224434243
6
Senary
12014034521
8
Octal
465260721
10
Decimal
81093073
12
Duodecimal
231a8a41
16
Hexadecimal
4d561d1
20
Vigesimal
156gcdd
36
Base36
1ca3td
md5
9561fd1439008d59149a65244855f28d
sha1
a561193a29c701beb8125e8a5e4cad0942b64d54
sha256
75027e091261164728352bfe4ad09a90b75fa64f4a7c8b7ab527b86a4035de1f
sha512
dee98a459a2e786521e4fad81c5a0a1386a42b534fafe5b3fdb023fc32d69d0cadc624915ed83e999b1a3f6cd7bcc75a3f7e2d4b20604769c69900ef920b79a5
ripemd-160
62a082c913598d69c3a2ea0622015f022a849700
Diameter
162186146
Circumference
509522804.78764
Area
2.0659385001904E+16
Volume
2.2337773547927E+24
Surface area
8.2637540007618E+16
Circumference
509522804.78764
Perimeter
324372292
Area
6576086488583329
Diagonal
114682923.65111
Surface area
39456518931499974
Volume
5.33275061673E+23
Space diagonal
140457322.57789
Perimeter
243279219
Area
2.8475289782984E+15
Altitude
70228661.288946
Surface area
2.8475289782984E+15
Volume
6.2847068724442E+22
Height
38227641.217037