81004071 is an odd 8-digits composite number following 81004070
and preceding 81004072 . In scientific notation, it is written as 8.1004071 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 54002712 positive integers (up to 81004071) that are relatively prime to 81004071.
81004071 has 4 divisors, whose sum is 108005432
The reverse of 81004071 is 17040018
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
eighty-one million four thousand seventy-one
Scientific notation
8.1004071 × 10^7
Engineering notation
8.1004071 × 10^6
Prime Factorization
3 × 27001357
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81004071
Product of the distinct prime numbers
The prime factorization of 81004071 is 3 × 27001357.
Since it has a total of 2 prime factors.
10 , 8 , 99 , 88 , 565 , 992 , 5676 , 7045 , 40391 , 50940 , 759832 , 830202 , 7420076 , 5668043 , 88547774 , 9702636 , 22054836 , 748686638 , 7512650476 , 8600332943
n×2
162008142
n×3
243012213
n×4
324016284
n×5
405020355
n÷2
40502035.5
n÷3
27001357
n÷3
20251017.75
n÷5
16200814.2
n2
6561659518573041
n3
5.3152113352032E+23
n4
4.305537563768E+31
n5
3.4876607050863E+39
2 √n
9000.226163825
3 √n
432.6821196103
4 √n
94.869521785582
5 √n
38.168172745431
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
-81004070
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 81004071 can be divided by 4 positive divisors.
The sum of these divisors (counting 81004071) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101000000011000100111
3
Ternary
12122102102200210
4
Quaternary
10311000120213
5
Quinary
131214112241
6
Senary
12012110503
8
Octal
465003047
10
Decimal
81004071
12
Duodecimal
23165433
16
Hexadecimal
4d40627
20
Vigesimal
1565a3b
36
Base36
1c8753
md5
adfe19099b47864771fd71d884f8aea2
sha1
89869b0d2ec75258e2fa184185ef35f1ffc83c13
sha256
96944f89b9d259e60e52682ad1832b448e2a3f9ba51d9782d7a2513c1fffad38
sha512
78c2031f0a453a572a722a5f20bbcbcb17196c8d34aad2c4beb2820a8bb49b41bd9d4b2f9a69f7163ffd89d07a51564eeb5ae2378f7f19d8157f6a59760030db
ripemd-160
0b0c8c7521ec2e5ddb52387e0427a257095703e0
Diameter
162008142
Circumference
508963588.72893
Area
2.0614061338907E+16
Volume
2.2264305177269E+24
Surface area
8.2456245355626E+16
Circumference
508963588.72893
Perimeter
324016284
Area
6561659518573041
Diagonal
114557055.81563
Surface area
39369957111438246
Volume
5.3152113352032E+23
Space diagonal
140303166.59192
Perimeter
243012213
Area
2.8412819170341E+15
Altitude
70151583.295958
Surface area
2.8412819170341E+15
Volume
6.2640366309363E+22
Height
38185685.271878