81123040 (number)

81123040 is an even 8-digits composite number following 81123039 and preceding 81123041. In scientific notation, it is written as 8.1123040 × 10^7. The sum of its digits is 19. It has a total of 8 prime factors and 48 positive divisors. There are 32108544 positive integers (up to 81123040) that are relatively prime to 81123040.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-three thousand forty

Notation

Scientific notation 8.1123040 × 10^7
Engineering notation 8.1123040 × 10^6

Prime Factorization of 81123040

Prime Factorization 2 × 2 × 2 × 2 × 2 × 5 × 97 × 5227

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 5070190
Product of the distinct prime numbers

The prime factorization of 81123040 is 2 × 2 × 2 × 2 × 2 × 5 × 97 × 5227. Since it has a total of 8 prime factors.

Most popular turbo-numbers

6, 9, 4, 24, 363, 589, 6934, 1712, 61332, 35970, 765841, 980220, 9802267, 9687442, 42567231, 93922389, 534758890, 836491503, 1477887060, 6460962378

Basic calculations (n = 81123040)

Multiplication

n×y
n×2 162246080
n×3 243369120
n×4 324492160
n×5 405615200

Division

n÷y
n÷2 40561520
n÷3 27041013.333333
n÷3 20280760
n÷5 16224608

Exponentiation

ny
n2 6580947618841600
n3 5.3386647692119E+23
n4 4.3308871561937E+31
n5 3.5133473200739E+39

Nth Root

y√n
2√n 9006.8329617019
3√n 432.89383974787
4√n 94.904335842478
5√n 38.179377525701

Divisors of 81123040

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1552, 1940, 3104, 3880, 5227, 7760, 10454, 15520, 20908, 26135, 41816, 52270, 83632, 104540, 167264, 209080, 418160, 507019, 836320, 1014038, 2028076, 2535095, 4056152, 5070190, 8112304, 10140380, 16224608, 20280760, 40561520, 81123040

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81123039
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81123040 can be divided by 48 positive divisors. The sum of these divisors (counting 81123040) is 1, the average is 0.020833333333333.

Base conversion 81123040

Base System Value
2 Binary 100110101011101011011100000
3 Ternary 12122122110220001
4 Quaternary 10311131123200
5 Quinary 131231414130
6 Senary 12014425344
8 Octal 465353340
10 Decimal 81123040
12 Duodecimal 23202254
16 Hexadecimal 4d5d6e0
20 Vigesimal 15707c0
36 Base36 1caqxs

Cryptographic Hash Functions

md5 661245450683d38c53feca4bbf234291
sha1 384ccdee8548ff1b93d6d923fb2b0f567adb97dd
sha256 dd39f2b444daf5fc062816e0a2b681f0036055586eb3444e9c14dd60fc7744f9
sha512 ebb18ad8de0fab3afc630fb15a8140bffec23f09c41c6e4bd8f102fe8385c8fe26dcdafdceb01bdafbf7d30050b57c4e662520b97a0b7261aa8fc54feddaec90
ripemd-160 519bde24a0c12fe008e8edec08a796be6b34da8d

81123040 as geometric shapes

Circle

Radius = n
Diameter 162246080
Circumference 509711093.00174
Area 2.0674656693012E+16

Sphere

Radius = n
Volume 2.2362546691913E+24
Surface area 8.2698626772048E+16
Circumference 509711093.00174

Square

Length = n
Perimeter 324492160
Area 6580947618841600
Diagonal 114725303.38894

Cube

Length = n
Surface area 39485685713049600
Volume 5.3386647692119E+23
Space diagonal 140509226.94444

Equilateral Triangle

Length = n
Perimeter 243369120
Area 2.8496339094458E+15
Altitude 70254613.472221

Triangular Pyramid

Length = n
Surface area 2.8496339094458E+15
Volume 6.2916767679858E+22
Height 38241767.796312