81004042 is an even 8-digits composite number following 81004041
and preceding 81004043 . In scientific notation, it is written as 8.1004042 × 10^7.
The sum of its digits is 19. It has a total of 5 prime factors and 32 positive divisors.
There are 33981360 positive integers (up to 81004042) that are relatively prime to 81004042.
81004042 has 32 divisors, whose sum is 141834240
The reverse of 81004042 is 24040018
Previous prime number is 71
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
eighty-one million four thousand forty-two
Scientific notation
8.1004042 × 10^7
Engineering notation
8.1004042 × 10^6
Prime Factorization
2 × 7 × 227 × 71 × 359
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
81004042
Product of the distinct prime numbers
The prime factorization of 81004042 is 2 × 7 × 227 × 71 × 359.
Since it has a total of 5 prime factors.
2 , 8 , 47 , 96 , 869 , 496 , 3242 , 7035 , 20251 , 21966 , 652193 , 955496 , 3228651 , 4372557 , 87989364 , 42203331 , 580976784 , 618757219 , 2777105039 , 2245639855
n×2
162008084
n×3
243012126
n×4
324016168
n×5
405020210
n÷2
40502021
n÷3
27001347.333333
n÷3
20251010.5
n÷5
16200808.4
n2
6561654820337764
n3
5.3152056265614E+23
n4
4.3055313981262E+31
n5
3.4876544620613E+39
2 √n
9000.2245527542
3 √n
432.68206797592
4 √n
94.8695132946
5 √n
38.168170012538
1 , 2 , 7 , 14 , 71 , 142 , 227 , 359 , 454 , 497 , 718 , 994 , 1589 , 2513 , 3178 , 5026 , 16117 , 25489 , 32234 , 50978 , 81493 , 112819 , 162986 , 178423 , 225638 , 356846 , 570451 , 1140902 , 5786003 , 11572006 , 40502021 , 81004042
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81004041
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81004042 can be divided by 32 positive divisors.
The sum of these divisors (counting 81004042) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110101000000011000001010
3
Ternary
12122102102122201
4
Quaternary
10311000120022
5
Quinary
131214112132
6
Senary
12012110414
8
Octal
465003012
10
Decimal
81004042
12
Duodecimal
2316540a
16
Hexadecimal
4d4060a
20
Vigesimal
1565a22
36
Base36
1c874a
md5
180c44084271f7c147a9d55add58d570
sha1
c1e267c51fd9e8a72a104e41057fb8c259989e18
sha256
a9ea7431d7cba19cff3cf29edd40e7d70a7e73ca7238444975d688643eaf0b19
sha512
e18cc619fbd89a53fc680c484745f8011c590cc6a289d02499fc109830518c4c883eebd42c0619c66c49b8b46ea6875b4397fca218ed8be10a87a4536e3c6755
ripemd-160
59969c9de2843e095412d2ee7c25a85113ef19fe
Diameter
162008084
Circumference
508963406.51656
Area
2.0614046578965E+16
Volume
2.2264281264966E+24
Surface area
8.2456186315861E+16
Circumference
508963406.51656
Perimeter
324016168
Area
6561654820337764
Diagonal
114557014.80344
Surface area
39369928922026584
Volume
5.3152056265614E+23
Space diagonal
140303116.36244
Perimeter
243012126
Area
2.8412798826386E+15
Altitude
70151558.181222
Surface area
2.8412798826386E+15
Volume
6.2640299032375E+22
Height
38185671.601147