81127974 is an even 8-digits composite number following 81127973
and preceding 81127975 . In scientific notation, it is written as 8.1127974 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 27042656 positive integers (up to 81127974) that are relatively prime to 81127974.
81127974 has 8 divisors, whose sum is 162255960
The reverse of 81127974 is 47972118
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-one million one hundred twenty-seven thousand nine hundred seventy-four
Scientific notation
8.1127974 × 10^7
Engineering notation
8.1127974 × 10^6
Prime Factorization
2 × 3 × 13521329
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81127974
Product of the distinct prime numbers
The prime factorization of 81127974 is 2 × 3 × 13521329.
Since it has a total of 3 prime factors.
3 , 6 , 81 , 78 , 504 , 165 , 4235 , 9550 , 50112 , 9967 , 657685 , 978645 , 371358 , 9558530 , 21734182 , 62526248 , 242377067 , 714888836 , 7390458800 , 4314706179
n×2
162255948
n×3
243383922
n×4
324511896
n×5
405639870
n÷2
40563987
n÷3
27042658
n÷3
20281993.5
n÷5
16225594.8
n2
6581748165344676
n3
5.3396389403263E+23
n4
4.3319408912018E+31
n5
3.5144158799096E+39
2 √n
9007.1068606962
3 √n
432.90261594308
4 √n
94.905778858277
5 √n
38.179841937454
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81127973
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81127974 can be divided by 8 positive divisors.
The sum of these divisors (counting 81127974) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011110101000100110
3
Ternary
12122122201122210
4
Quaternary
10311132220212
5
Quinary
131232043344
6
Senary
12014504250
8
Octal
465365046
10
Decimal
81127974
12
Duodecimal
23205086
16
Hexadecimal
4d5ea26
20
Vigesimal
1570jie
36
Base36
1cauqu
md5
aedb702aa427458e30a01c8b2e9102ac
sha1
dd31b4664b89d6cf602fd8373d69bc07386dfd9b
sha256
69e7a1f86275d36a44ac1a3d2dacf183b0ae11143104c9f1b41ec4d53e4546dc
sha512
9dc483143a697d808b92310e740c647d1f7e0054c162964bc351320ae557497db48e798e82dcb6c85ae3a504fe67db09f5aff4b957ec1967e1ae478da46f74b8
ripemd-160
afb75d044eea683b3038dc92711bbf12e254220f
Diameter
162255948
Circumference
509742094.23805
Area
2.0677171684025E+16
Volume
2.2366627290335E+24
Surface area
8.27086867361E+16
Circumference
509742094.23805
Perimeter
324511896
Area
6581748165344676
Diagonal
114732281.11865
Surface area
39490488992068056
Volume
5.3396389403263E+23
Space diagonal
140517772.88313
Perimeter
243383922
Area
2.8499805562501E+15
Altitude
70258886.441563
Surface area
2.8499805562501E+15
Volume
6.2928248396541E+22
Height
38244093.706217