81738320 (number)

81738320 is an even 8-digits composite number following 81738319 and preceding 81738321. In scientific notation, it is written as 8.1738320 × 10^7. The sum of its digits is 32. It has a total of 8 prime factors and 80 positive divisors. There are 30243840 positive integers (up to 81738320) that are relatively prime to 81738320.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred thirty-eight thousand three hundred twenty

Notation

Scientific notation 8.1738320 × 10^7
Engineering notation 8.1738320 × 10^6

Prime Factorization of 81738320

Prime Factorization 2 × 2 × 2 × 2 × 5 × 23 × 31 × 1433

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 10217290
Product of the distinct prime numbers

The prime factorization of 81738320 is 2 × 2 × 2 × 2 × 5 × 23 × 31 × 1433. Since it has a total of 8 prime factors.

Most popular turbo-numbers

4, 7, 32, 67, 133, 575, 3740, 656, 3102, 40494, 329031, 382442, 6169464, 1457902, 87120780, 45239579, 142926809, 520463387, 5282345361, 4560067555

Basic calculations (n = 81738320)

Multiplication

n×y
n×2 163476640
n×3 245214960
n×4 326953280
n×5 408691600

Division

n÷y
n÷2 40869160
n÷3 27246106.666667
n÷3 20434580
n÷5 16347664

Exponentiation

ny
n2 6681152956422400
n3 5.46106218321E+23
n4 4.4637804827112E+31
n5 3.648619175056E+39

Nth Root

y√n
2√n 9040.9247314641
3√n 433.98551630401
4√n 95.083777435818
5√n 38.237117133892

Divisors of 81738320

1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 40, 46, 62, 80, 92, 115, 124, 155, 184, 230, 248, 310, 368, 460, 496, 620, 713, 920, 1240, 1426, 1433, 1840, 2480, 2852, 2866, 3565, 5704, 5732, 7130, 7165, 11408, 11464, 14260, 14330, 22928, 28520, 28660, 32959, 44423, 57040, 57320, 65918, 88846, 114640, 131836, 164795, 177692, 222115, 263672, 329590, 355384, 444230, 527344, 659180, 710768, 888460, 1021729, 1318360, 1776920, 2043458, 2636720, 3553840, 4086916, 5108645, 8173832, 10217290, 16347664, 20434580, 40869160, 81738320

80 divisors

τ Total Divisors 80
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81738319
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0125
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 80
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81738320 can be divided by 80 positive divisors. The sum of these divisors (counting 81738320) is 1, the average is 0.0125.

Base conversion 81738320

Base System Value
2 Binary 100110111110011101001010000
3 Ternary 12200210201220012
4 Quaternary 10313303221100
5 Quinary 131411111240
6 Senary 12035534052
8 Octal 467635120
10 Decimal 81738320
12 Duodecimal 2345a328
16 Hexadecimal 4df3a50
20 Vigesimal 15ah5g0
36 Base36 1cnxow

Cryptographic Hash Functions

md5 0f10e2b8851ec047277f6f75e0418fd2
sha1 777a822758a4c19ccfd3561ce2e5c345a60fd573
sha256 0bc69b2c8dc817a0935acf92862d59d5b33002fc095222b581c9ad80f4e04c36
sha512 18734f5b518ac65750d3364e8e2e8822c2c7a15ab2ac2537121959fb7c33dd52e826bc64186cc53d6c5832b957b28336636a77587b193692dd5313ca703b7ad9
ripemd-160 14cc55a72b58f6e3bbecda6220466287eea3fe9e

81738320 as geometric shapes

Circle

Radius = n
Diameter 163476640
Circumference 513577011.25754
Area 2.0989461045406E+16

Sphere

Radius = n
Volume 2.2875243780759E+24
Surface area 8.3957844181625E+16
Circumference 513577011.25754

Square

Length = n
Perimeter 326953280
Area 6681152956422400
Diagonal 115595440.70959

Cube

Length = n
Surface area 40086917738534400
Volume 5.46106218321E+23
Space diagonal 141574923.16532

Equilateral Triangle

Length = n
Perimeter 245214960
Area 2.8930240934157E+15
Altitude 70787461.582662

Triangular Pyramid

Length = n
Surface area 2.8930240934157E+15
Volume 6.4359235037153E+22
Height 38531813.569864