81331570 (number)

81331570 is an even 8-digits composite number following 81331569 and preceding 81331571. In scientific notation, it is written as 8.1331570 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors. There are 30618880 positive integers (up to 81331570) that are relatively prime to 81331570.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred thirty-one thousand five hundred seventy

Notation

Scientific notation 8.1331570 × 10^7
Engineering notation 8.1331570 × 10^6

Prime Factorization of 81331570

Prime Factorization 2 × 5 × 17 × 478421

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81331570
Product of the distinct prime numbers

The prime factorization of 81331570 is 2 × 5 × 17 × 478421. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 4, 42, 78, 617, 506, 3350, 6615, 32292, 44501, 620586, 485725, 4091042, 3976839, 63681619, 51932638, 734033176, 468083761, 7194870618, 1713434796

Basic calculations (n = 81331570)

Multiplication

n×y
n×2 162663140
n×3 243994710
n×4 325326280
n×5 406657850

Division

n÷y
n÷2 40665785
n÷3 27110523.333333
n÷3 20332892.5
n÷5 16266314

Exponentiation

ny
n2 6614824278664900
n3 5.3799404385793E+23
n4 4.3755900237615E+31
n5 3.5587360630886E+39

Nth Root

y√n
2√n 9018.4017431028
3√n 433.26444598573
4√n 94.965265982373
5√n 38.19898569623

Divisors of 81331570

1, 2, 5, 10, 17, 34, 85, 170, 478421, 956842, 2392105, 4784210, 8133157, 16266314, 40665785, 81331570

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81331569
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81331570 can be divided by 16 positive divisors. The sum of these divisors (counting 81331570) is 1, the average is 0.0625.

Base conversion 81331570

Base System Value
2 Binary 100110110010000010101110010
3 Ternary 12200001001221101
4 Quaternary 10312100111302
5 Quinary 131310102240
6 Senary 12023115014
8 Octal 466202562
10 Decimal 81331570
12 Duodecimal 232a2a6a
16 Hexadecimal 4d90572
20 Vigesimal 15868ia
36 Base36 1cf7ua

Cryptographic Hash Functions

md5 cbab7a118df99d34f57bca4388c9c498
sha1 8ebe7967bf8d4586555be33b259877e345748952
sha256 a8b1e823bb09e9caa2725a742bc59359f8e64f5e02f889e7cae34442380f61aa
sha512 85c231f2dab74b698684f79a85c2e292e8340da7d8190081e1c09a5a36823199656adc21c5556bf5291d0e1c3ee860cac7076a18f554f85e86ecc607978b3b73
ripemd-160 b87c6edd2c36613685a4518989ada83d3105f9c6

81331570 as geometric shapes

Circle

Radius = n
Diameter 162663140
Circumference 511021325.63385
Area 2.0781083358641E+16

Sphere

Radius = n
Volume 2.2535441811455E+24
Surface area 8.3124333434564E+16
Circumference 511021325.63385

Square

Length = n
Perimeter 325326280
Area 6614824278664900
Diagonal 115020209.3431

Cube

Length = n
Surface area 39688945671989400
Volume 5.3799404385793E+23
Space diagonal 140870411.49934

Equilateral Triangle

Length = n
Perimeter 243994710
Area 2.8643029334469E+15
Altitude 70435205.749672

Triangular Pyramid

Length = n
Surface area 2.8643029334469E+15
Volume 6.340320610832E+22
Height 38340069.781032