81000780 (number)

81000780 is an even 8-digits composite number following 81000779 and preceding 81000781. In scientific notation, it is written as 8.1000780 × 10^7. The sum of its digits is 24. It has a total of 5 prime factors and 24 positive divisors. There are 18514368 positive integers (up to 81000780) that are relatively prime to 81000780.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred eighty

Notation

Scientific notation 8.1000780 × 10^7
Engineering notation 8.1000780 × 10^6

Prime Factorization of 81000780

Prime Factorization 2 × 2 × 15 × 7 × 192859

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40500390
Product of the distinct prime numbers

The prime factorization of 81000780 is 2 × 2 × 15 × 7 × 192859. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 7, 1, 57, 77, 10, 5726, 7780, 50042, 88905, 149585, 3820, 709821, 762999, 83395000, 34626165, 772205690, 965088854, 4565566603, 1403592042

Basic calculations (n = 81000780)

Multiplication

n×y
n×2 162001560
n×3 243002340
n×4 324003120
n×5 405003900

Division

n÷y
n÷2 40500390
n÷3 27000260
n÷3 20250195
n÷5 16200156

Exponentiation

ny
n2 6561126360608400
n3 5.3145635288784E+23
n4 4.304837911987E+31
n5 3.4869522864452E+39

Nth Root

y√n
2√n 9000.043333229
3√n 432.67625992068
4√n 94.868558190947
5√n 38.167862604233

Divisors of 81000780

1, 2, 4, 7, 14, 15, 28, 30, 60, 105, 210, 420, 192859, 385718, 771436, 1350013, 2700026, 2892885, 5400052, 5785770, 11571540, 20250195, 40500390, 81000780

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81000779
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81000780 can be divided by 24 positive divisors. The sum of these divisors (counting 81000780) is 1, the average is 0.041666666666667.

Base conversion 81000780

Base System Value
2 Binary 100110100111111100101001100
3 Ternary 12122102021011220
4 Quaternary 10310333211030
5 Quinary 131214011110
6 Senary 12012043340
8 Octal 464774514
10 Decimal 81000780
12 Duodecimal 23163550
16 Hexadecimal 4d3f94c
20 Vigesimal 15651j0
36 Base36 1c84lo

Cryptographic Hash Functions

md5 7e89ce42c3e0abfb38a156009c355418
sha1 76b586b4d9031397a1ede29b9b9f9b7ee6183fe9
sha256 adf04cdbec32ea34798c3b13aa91e7119d8264e2d5454cf329082052fbf4c645
sha512 886bcea83dea5311dfd505b806b031dcd92954864d619d417b4c961649e372d14973813351cbcb0e9033cae22b7779a64f5f03dcd8317eb47eb81ba62e3ef3e5
ripemd-160 491cc7631392683e7e3ddb5535d5826ec6419c87

81000780 as geometric shapes

Circle

Radius = n
Diameter 162001560
Circumference 508942910.76609
Area 2.0612386373762E+16

Sphere

Radius = n
Volume 2.2261591652481E+24
Surface area 8.2449545495047E+16
Circumference 508942910.76609

Square

Length = n
Perimeter 324003120
Area 6561126360608400
Diagonal 114552401.6388

Cube

Length = n
Surface area 39366758163650400
Volume 5.3145635288784E+23
Space diagonal 140297466.41271

Equilateral Triangle

Length = n
Perimeter 243002340
Area 2.8410510528633E+15
Altitude 70148733.206354

Triangular Pyramid

Length = n
Surface area 2.8410510528633E+15
Volume 6.2632731838611E+22
Height 38184133.8796