81730908 (number)

81730908 is an even 8-digits composite number following 81730907 and preceding 81730909. In scientific notation, it is written as 8.1730908 × 10^7. The sum of its digits is 36. It has a total of 6 prime factors and 36 positive divisors. There are 23351616 positive integers (up to 81730908) that are relatively prime to 81730908.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1730908 × 10^7
Engineering notation 8.1730908 × 10^6

Prime Factorization of 81730908

Prime Factorization 2 × 2 × 3 × 3 × 7 × 324329

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 13621818
Product of the distinct prime numbers

The prime factorization of 81730908 is 2 × 2 × 3 × 3 × 7 × 324329. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 6, 53, 93, 365, 963, 5551, 7246, 8361, 74461, 981463, 706878, 9322939, 286101, 9963522, 28039798, 202521680, 916907098, 1019038541, 3516953937

Basic calculations (n = 81730908)

Multiplication

n×y
n×2 163461816
n×3 245192724
n×4 326923632
n×5 408654540

Division

n÷y
n÷2 40865454
n÷3 27243636
n÷3 20432727
n÷5 16346181.6

Exponentiation

ny
n2 6679941322504464
n3 5.4595766967501E+23
n4 4.4621616072103E+31
n5 3.6469651980003E+39

Nth Root

y√n
2√n 9040.5148083502
3√n 433.97239802655
4√n 95.081621822255
5√n 38.236423643268

Divisors of 81730908

1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 324329, 648658, 972987, 1297316, 1945974, 2270303, 2918961, 3891948, 4540606, 5837922, 6810909, 9081212, 11675844, 13621818, 20432727, 27243636, 40865454, 81730908

36 divisors

τ Total Divisors 36
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81730907
Sum of the proper positive divisors of n
A Arithmetic Mean 0.027777777777778
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 36
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81730908 can be divided by 36 positive divisors. The sum of these divisors (counting 81730908) is 1, the average is 0.027777777777778.

Base conversion 81730908

Base System Value
2 Binary 100110111110001110101011100
3 Ternary 12200210100201200
4 Quaternary 10313301311130
5 Quinary 131410342113
6 Senary 12035435500
8 Octal 467616534
10 Decimal 81730908
12 Duodecimal 23455b90
16 Hexadecimal 4df1d5c
20 Vigesimal 15ag758
36 Base36 1cnrz0

Cryptographic Hash Functions

md5 ca2aed7a53579ea9f48e1ba3dcd4218c
sha1 c11b6cfef76a44b8aa0b55e9ca0691611bdb9938
sha256 9d8cd4f6949c230549049dc8ffac657eafcc42d8df4137efe9fedd3a69736287
sha512 deee8921bb272d4c4253fe249978f73ccda19f143a4b4dd60a6f327063e3809fa4bfc367a2dda6a8beb48cb343a8546ebb5330638adf21bd3fe6f3b2068a691e
ripemd-160 d774dbadb8d9034906edabc6f38723384f78718c

81730908 as geometric shapes

Circle

Radius = n
Diameter 163461816
Circumference 513530440.28805
Area 2.0985654585191E+16

Sphere

Radius = n
Volume 2.2869021389627E+24
Surface area 8.3942618340764E+16
Circumference 513530440.28805

Square

Length = n
Perimeter 326923632
Area 6679941322504464
Diagonal 115584958.55867

Cube

Length = n
Surface area 40079647935026784
Volume 5.4595766967501E+23
Space diagonal 141562085.20474

Equilateral Triangle

Length = n
Perimeter 245192724
Area 2.8924994405391E+15
Altitude 70781042.602369

Triangular Pyramid

Length = n
Surface area 2.8924994405391E+15
Volume 6.4341728411334E+22
Height 38528319.519556