81004078 is an even 8-digits composite number following 81004077
and preceding 81004079 . In scientific notation, it is written as 8.1004078 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 40502038 positive integers (up to 81004078) that are relatively prime to 81004078.
81004078 has 4 divisors, whose sum is 121506120
The reverse of 81004078 is 87040018
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million four thousand seventy-eight
Scientific notation
8.1004078 × 10^7
Engineering notation
8.1004078 × 10^6
Prime Factorization
2 × 40502039
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81004078
Product of the distinct prime numbers
The prime factorization of 81004078 is 2 × 40502039.
Since it has a total of 2 prime factors.
4 , 5 , 24 , 35 , 536 , 809 , 7922 , 3733 , 75468 , 78218 , 705168 , 165438 , 2416626 , 7635227 , 69308955 , 98394052 , 418897790 , 409632544 , 6318884053 , 3229784916
n×2
162008156
n×3
243012234
n×4
324016312
n×5
405020390
n÷2
40502039
n÷3
27001359.333333
n÷3
20251019.5
n÷5
16200815.6
n2
6561660652630084
n3
5.3152127131518E+23
n4
4.3055390520274E+31
n5
3.4876622120247E+39
2 √n
9000.2265527041
3 √n
432.68213207376
4 √n
94.869523835129
5 √n
38.168173405094
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
-81004077
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 81004078 can be divided by 4 positive divisors.
The sum of these divisors (counting 81004078) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101000000011000101110
3
Ternary
12122102102201001
4
Quaternary
10311000120232
5
Quinary
131214112303
6
Senary
12012110514
8
Octal
465003056
10
Decimal
81004078
12
Duodecimal
2316543a
16
Hexadecimal
4d4062e
20
Vigesimal
1565a3i
36
Base36
1c875a
md5
73e6553d3b9b273a80f311539b6007ec
sha1
0474be0b453c6c47bc5d3cfa0761e467baaf4ad4
sha256
35af0296bfab9a589736315abfbd52bf7a98e419e5b463b0d84e9b69931aa43f
sha512
68ea43d71b8bc5a54527b2dd6805817361bc9486477582d549862b1200c5d4a74a56e7a5bb4e7ac5aae3a11c8e5455a8b369f8ad72316d39abf82572e5d44dd3
ripemd-160
109d7563dc4b968928b88878d8d97d1abb676d52
Diameter
162008156
Circumference
508963632.71123
Area
2.0614064901652E+16
Volume
2.2264310949206E+24
Surface area
8.2456259606608E+16
Circumference
508963632.71123
Perimeter
324016312
Area
6561660652630084
Diagonal
114557065.71513
Surface area
39369963915780504
Volume
5.3152127131518E+23
Space diagonal
140303178.71627
Perimeter
243012234
Area
2.8412824080952E+15
Altitude
70151589.358136
Surface area
2.8412824080952E+15
Volume
6.2640382548643E+22
Height
38185688.571709