81597938 is an even 8-digits composite number following 81597937
and preceding 81597939 . In scientific notation, it is written as 8.1597938 × 10^7.
The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors.
There are 39392080 positive integers (up to 81597938) that are relatively prime to 81597938.
81597938 has 8 divisors, whose sum is 126617580
The reverse of 81597938 is 83979518
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 50
Digital Root 5
Name
eighty-one million five hundred ninety-seven thousand nine hundred thirty-eight
Scientific notation
8.1597938 × 10^7
Engineering notation
8.1597938 × 10^6
Prime Factorization
2 × 29 × 1406861
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81597938
Product of the distinct prime numbers
The prime factorization of 81597938 is 2 × 29 × 1406861.
Since it has a total of 3 prime factors.
1 , 8 , 25 , 26 , 587 , 647 , 8957 , 2523 , 85346 , 99328 , 42528 , 378108 , 574052 , 9122887 , 78691968 , 40988646 , 778625004 , 15673712 , 9681503743 , 1983018433
n×2
163195876
n×3
244793814
n×4
326391752
n×5
407989690
n÷2
40798969
n÷3
27199312.666667
n÷3
20399484.5
n÷5
16319587.6
n2
6658223485851844
n3
5.4329730718868E+23
n4
4.4331939987549E+31
n5
3.6173948905238E+39
2 √n
9033.1576981696
3 √n
433.7369235345
4 √n
95.042925555612
5 √n
38.223973985442
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
-81597937
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 81597938 can be divided by 8 positive divisors.
The sum of these divisors (counting 81597938) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111010001010111110010
3
Ternary
12200112121022212
4
Quaternary
10313101113302
5
Quinary
131342113223
6
Senary
12032532122
8
Octal
467212762
10
Decimal
81597938
12
Duodecimal
233b1042
16
Hexadecimal
4dd15f2
20
Vigesimal
159jegi
36
Base36
1ckxde
md5
1c410e596bb53275fc8f8c7d07e81daf
sha1
96256910c2b496720daa0419ac2d35adb6080f2b
sha256
3e402511dd88c7a093b6bb3932fdf8876fcc6648992d9e90d2be63954580819d
sha512
bff788d07332f4656401643b11d2ed96d29994393bf3b1f08e971035e98ef6c30144f430be9aff0f1a4de092ab49d68dd9dc971274967c46677e49bbd9409945
ripemd-160
d41b6fc91b82df0886d2b070ab972b37bef081f3
Diameter
163195876
Circumference
512694965.13775
Area
2.0917425989111E+16
Volume
2.2757584386388E+24
Surface area
8.3669703956445E+16
Circumference
512694965.13775
Perimeter
326391752
Area
6658223485851844
Diagonal
115396910.58128
Surface area
39949340915111064
Volume
5.4329730718868E+23
Space diagonal
141331774.40886
Perimeter
244793814
Area
2.8830953414109E+15
Altitude
70665887.204428
Surface area
2.8830953414109E+15
Volume
6.4028201685585E+22
Height
38465636.860426