81109748 (number)

81109748 is an even 8-digits composite number following 81109747 and preceding 81109749. In scientific notation, it is written as 8.1109748 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors. There are 39889920 positive integers (up to 81109748) that are relatively prime to 81109748.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1109748 × 10^7
Engineering notation 8.1109748 × 10^6

Prime Factorization of 81109748

Prime Factorization 2 × 2 × 61 × 332417

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40554874
Product of the distinct prime numbers

The prime factorization of 81109748 is 2 × 2 × 61 × 332417. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 9, 73, 15, 977, 81, 5597, 9150, 26169, 49862, 380692, 544007, 2569118, 4360344, 67149960, 25566318, 672606299, 38264576, 5621231674, 2154317257

Basic calculations (n = 81109748)

Multiplication

n×y
n×2 162219496
n×3 243329244
n×4 324438992
n×5 405548740

Division

n÷y
n÷2 40554874
n÷3 27036582.666667
n÷3 20277437
n÷5 16221949.6

Exponentiation

ny
n2 6578791220623504
n3 5.3360409804938E+23
n4 4.3280493924553E+31
n5 3.510469955536E+39

Nth Root

y√n
2√n 9006.0950472444
3√n 432.87019525587
4√n 94.90044808769
5√n 38.178126306443

Divisors of 81109748

1, 2, 4, 61, 122, 244, 332417, 664834, 1329668, 20277437, 40554874, 81109748

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81109747
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81109748 can be divided by 12 positive divisors. The sum of these divisors (counting 81109748) is 1, the average is 0.083333333333333.

Base conversion 81109748

Base System Value
2 Binary 100110101011010001011110100
3 Ternary 12122121210122202
4 Quaternary 10311122023310
5 Quinary 131231002443
6 Senary 12014244032
8 Octal 465321364
10 Decimal 81109748
12 Duodecimal 231b6618
16 Hexadecimal 4d5a2f4
20 Vigesimal 156ie78
36 Base36 1cagok

Cryptographic Hash Functions

md5 0278869c1932088318481c4d437c7fa3
sha1 cc892b548a1045f43e75c00777a3f9eda16975ab
sha256 515db9d124fbf35e5eef873b934c6a0fcface05be2480f883db04bf7e7edbccf
sha512 155ae5183982d2f132f1550931411c54b4c264b43435e49f24a580fab9c43097267c02d7b3f62802ee32c0dd69bd9d0a04710845ee07f4c1cf31dcde67edf241
ripemd-160 75b3d0096659bfda1b6d7fc1bc487d195ac7f879

81109748 as geometric shapes

Circle

Radius = n
Diameter 162219496
Circumference 509627576.90264
Area 2.0667882168212E+16

Sphere

Radius = n
Volume 2.2351556191431E+24
Surface area 8.2671528672847E+16
Circumference 509627576.90264

Square

Length = n
Perimeter 324438992
Area 6578791220623504
Diagonal 114706505.66226

Cube

Length = n
Surface area 39472747323741024
Volume 5.3360409804938E+23
Space diagonal 140486204.52511

Equilateral Triangle

Length = n
Perimeter 243329244
Area 2.848700161627E+15
Altitude 70243102.262554

Triangular Pyramid

Length = n
Surface area 2.848700161627E+15
Volume 6.2885846033275E+22
Height 38235501.887421