81127793 is an odd 8-digits composite number following 81127792
and preceding 81127794 . In scientific notation, it is written as 8.1127793 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 80291328 positive integers (up to 81127793) that are relatively prime to 81127793.
81127793 has 4 divisors, whose sum is 81964260
The reverse of 81127793 is 39772118
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million one hundred twenty-seven thousand seven hundred ninety-three
Scientific notation
8.1127793 × 10^7
Engineering notation
8.1127793 × 10^6
Prime Factorization
97 × 836369
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81127793
Product of the distinct prime numbers
The prime factorization of 81127793 is 97 × 836369.
Since it has a total of 2 prime factors.
9 , 1 , 5 , 61 , 490 , 752 , 1337 , 887 , 70695 , 95057 , 264762 , 646856 , 5612302 , 4887848 , 55712745 , 78406365 , 230321366 , 311885721 , 5146020405 , 9931005370
n×2
162255586
n×3
243383379
n×4
324511172
n×5
405638965
n÷2
40563896.5
n÷3
27042597.666667
n÷3
20281948.25
n÷5
16225558.6
n2
6581718797050849
n3
5.3396032015135E+23
n4
4.3319022323452E+31
n5
3.5143766760194E+39
2 √n
9007.0968130691
3 √n
432.90229400139
4 √n
94.905725923514
5 √n
38.179824901265
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
-81127792
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 81127793 can be divided by 4 positive divisors.
The sum of these divisors (counting 81127793) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101011110100101110001
3
Ternary
12122122201102002
4
Quaternary
10311132211301
5
Quinary
131232042133
6
Senary
12014503345
8
Octal
465364561
10
Decimal
81127793
12
Duodecimal
23204b55
16
Hexadecimal
4d5e971
20
Vigesimal
1570j9d
36
Base36
1cault
md5
3b3d9bcce973be93c62ba4b6e3ce7938
sha1
01d7d4494e74595b6c7f9a7b6e2361b273879373
sha256
e2a01db414864599598562ddb7e9b313adc4015a0c180423508351e2a25b0d93
sha512
cbbb68e6a3259f9e223b51a96192f3c3f162e8018905aa6b833909b77c77443f63a82bdb300e1b06a7adf9cb04159f20700a4bebf11243f8f7350336c5150dbc
ripemd-160
52a1f43e8fc3f4142b09de195ca624d0a5a7bab3
Diameter
162255586
Circumference
509740956.98151
Area
2.0677079420809E+16
Volume
2.2366477587946E+24
Surface area
8.2708317683235E+16
Circumference
509740956.98151
Perimeter
324511172
Area
6581718797050849
Diagonal
114732025.146
Surface area
39490312782305094
Volume
5.3396032015135E+23
Space diagonal
140517459.38193
Perimeter
243383379
Area
2.8499678394058E+15
Altitude
70258729.690965
Surface area
2.8499678394058E+15
Volume
6.2927827210593E+22
Height
38244008.381999