81597938 (number)

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.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred ninety-seven thousand nine hundred thirty-eight

Notation

Scientific notation 8.1597938 × 10^7
Engineering notation 8.1597938 × 10^6

Prime Factorization of 81597938

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.

Most popular turbo-numbers

Basic calculations (n = 81597938)

Multiplication

n×y
n×2 163195876
n×3 244793814
n×4 326391752
n×5 407989690

Division

n÷y
n÷2 40798969
n÷3 27199312.666667
n÷3 20399484.5
n÷5 16319587.6

Exponentiation

ny
n2 6658223485851844
n3 5.4329730718868E+23
n4 4.4331939987549E+31
n5 3.6173948905238E+39

Nth Root

y√n
2√n 9033.1576981696
3√n 433.7369235345
4√n 95.042925555612
5√n 38.223973985442

Divisors of 81597938

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 conversion 81597938

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

Cryptographic Hash Functions

md5 1c410e596bb53275fc8f8c7d07e81daf
sha1 96256910c2b496720daa0419ac2d35adb6080f2b
sha256 3e402511dd88c7a093b6bb3932fdf8876fcc6648992d9e90d2be63954580819d
sha512 bff788d07332f4656401643b11d2ed96d29994393bf3b1f08e971035e98ef6c30144f430be9aff0f1a4de092ab49d68dd9dc971274967c46677e49bbd9409945
ripemd-160 d41b6fc91b82df0886d2b070ab972b37bef081f3

81597938 as geometric shapes

Circle

Radius = n
Diameter 163195876
Circumference 512694965.13775
Area 2.0917425989111E+16

Sphere

Radius = n
Volume 2.2757584386388E+24
Surface area 8.3669703956445E+16
Circumference 512694965.13775

Square

Length = n
Perimeter 326391752
Area 6658223485851844
Diagonal 115396910.58128

Cube

Length = n
Surface area 39949340915111064
Volume 5.4329730718868E+23
Space diagonal 141331774.40886

Equilateral Triangle

Length = n
Perimeter 244793814
Area 2.8830953414109E+15
Altitude 70665887.204428

Triangular Pyramid

Length = n
Surface area 2.8830953414109E+15
Volume 6.4028201685585E+22
Height 38465636.860426