81594416 is an even 8-digits composite number following 81594415
and preceding 81594417 . In scientific notation, it is written as 8.1594416 × 10^7.
The sum of its digits is 38. It has a total of 6 prime factors and 20 positive divisors.
There are 40636416 positive integers (up to 81594416) that are relatively prime to 81594416.
81594416 has 20 divisors, whose sum is 158712312
The reverse of 81594416 is 61449518
Previous prime number is 257
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million five hundred ninety-four thousand four hundred sixteen
Scientific notation
8.1594416 × 10^7
Engineering notation
8.1594416 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 257 × 19843
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
10199302
Product of the distinct prime numbers
The prime factorization of 81594416 is 2 × 2 × 2 × 2 × 257 × 19843.
Since it has a total of 6 prime factors.
1 , 6 , 74 , 62 , 778 , 543 , 4306 , 1259 , 19439 , 91111 , 159011 , 320363 , 1668266 , 1208059 , 5115768 , 59537848 , 497348651 , 458465661 , 3844606126 , 4873629342
n×2
163188832
n×3
244783248
n×4
326377664
n×5
407972080
n÷2
40797208
n÷3
27198138.666667
n÷3
20398604
n÷5
16318883.2
n2
6657648722381056
n3
5.4322695943583E+23
n4
4.4324286510622E+31
n5
3.6166142724509E+39
2 √n
9032.9627476261
3 √n
433.73068300334
4 √n
95.041899957998
5 √n
38.223644008572
1 , 2 , 4 , 8 , 16 , 257 , 514 , 1028 , 2056 , 4112 , 19843 , 39686 , 79372 , 158744 , 317488 , 5099651 , 10199302 , 20398604 , 40797208 , 81594416
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81594415
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81594416 can be divided by 20 positive divisors.
The sum of these divisors (counting 81594416) is 1, the average is 0.05.
Base
System
Value
2
Binary
100110111010000100000110000
3
Ternary
12200112102111102
4
Quaternary
10313100200300
5
Quinary
131342010131
6
Senary
12032503532
8
Octal
467204060
10
Decimal
81594416
12
Duodecimal
233aaba8
16
Hexadecimal
4dd0830
20
Vigesimal
159j60g
36
Base36
1ckunk
md5
e9b425481a7249b90bc7a047f40093d8
sha1
02aeedab22c5268b1f46a199071134910bbaee6d
sha256
2f4c039df0708e822745b18edbb0190887037441aaf343b3a7e53051205226bd
sha512
87c29d3cafb5372f4510315921491a47cfef5535e7b13955af259280a7ac217dc372479d69d822416f73ae5fd0f1f6bc00c92a3a0c86b6eb7057a7db4fe53fb3
ripemd-160
263fd5f8f1159eeda2105c3d838af6d63e8c5eb8
Diameter
163188832
Circumference
512672835.7591
Area
2.0915620316414E+16
Volume
2.2754637666607E+24
Surface area
8.3662481265655E+16
Circumference
512672835.7591
Perimeter
326377664
Area
6657648722381056
Diagonal
115391929.72111
Surface area
39945892334286336
Volume
5.4322695943583E+23
Space diagonal
141325674.12591
Perimeter
244783248
Area
2.8828464615275E+15
Altitude
70662837.062955
Surface area
2.8828464615275E+15
Volume
6.4019911123404E+22
Height
38463976.573704