81140984 is an even 8-digits composite number following 81140983
and preceding 81140985 . In scientific notation, it is written as 8.1140984 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 8 positive divisors.
There are 40570488 positive integers (up to 81140984) that are relatively prime to 81140984.
81140984 has 8 divisors, whose sum is 152139360
The reverse of 81140984 is 48904118
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-one million one hundred forty thousand nine hundred eighty-four
Scientific notation
8.1140984 × 10^7
Engineering notation
8.1140984 × 10^6
Prime Factorization
2 × 2 × 2 × 10142623
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20285246
Product of the distinct prime numbers
The prime factorization of 81140984 is 2 × 2 × 2 × 10142623.
Since it has a total of 4 prime factors.
3 , 8 , 42 , 48 , 189 , 541 , 9468 , 3868 , 16498 , 78782 , 222930 , 9654 , 1217325 , 8760622 , 48116326 , 60033475 , 906251831 , 374112491 , 381645205 , 5535101943
n×2
162281968
n×3
243422952
n×4
324563936
n×5
405704920
n÷2
40570492
n÷3
27046994.666667
n÷3
20285246
n÷5
16228196.8
n2
6583859284488256
n3
5.3422082086091E+23
n4
4.3347203077942E+31
n5
3.5172347113921E+39
2 √n
9007.8290392303
3 √n
432.92575535983
4 √n
94.909583495189
5 √n
38.181066392743
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
-81140983
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 81140984 can be divided by 8 positive divisors.
The sum of these divisors (counting 81140984) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101100001110011111000
3
Ternary
12122200101111122
4
Quaternary
10311201303320
5
Quinary
131233002414
6
Senary
12015044412
8
Octal
465416370
10
Decimal
81140984
12
Duodecimal
23210708
16
Hexadecimal
4d61cf8
20
Vigesimal
1572c94
36
Base36
1cb4s8
md5
32a534d7034fc5bab0609efe5cba9b31
sha1
375f86c49d67656b49b14596c7b6a1c085bdbd31
sha256
3bf208be69031499301dd2dee00d485e71254a52383d6586e3b6074ff7010966
sha512
2dfd45c96e9e8dc4dbbf420cc39cc348fc86fc07ad737912d4a3ed33da37d0b8d5b6d2839bbe928d659fcc3e92cc020cfcbb76221fce02cf70a759007812ed65
ripemd-160
2a2b5ccb88a847f0d458271aec3d89fe3fc2664e
Diameter
162281968
Circumference
509823838.47889
Area
2.0683803960417E+16
Volume
2.2377389416151E+24
Surface area
8.2735215841669E+16
Circumference
509823838.47889
Perimeter
324563936
Area
6583859284488256
Diagonal
114750680.0371
Surface area
39503155706929536
Volume
5.3422082086091E+23
Space diagonal
140540306.86413
Perimeter
243422952
Area
2.8508946976544E+15
Altitude
70270153.432067
Surface area
2.8508946976544E+15
Volume
6.2958527513633E+22
Height
38250226.679033