81444400 (number)

81444400 is an even 8-digits composite number following 81444399 and preceding 81444401. In scientific notation, it is written as 8.1444400 × 10^7. The sum of its digits is 25. It has a total of 8 prime factors and 60 positive divisors. There are 31691520 positive integers (up to 81444400) that are relatively prime to 81444400.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred forty-four thousand four hundred

Notation

Scientific notation 8.1444400 × 10^7
Engineering notation 8.1444400 × 10^6

Prime Factorization of 81444400

Prime Factorization 2 × 2 × 2 × 2 × 5 × 5 × 37 × 5503

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 2036110
Product of the distinct prime numbers

The prime factorization of 81444400 is 2 × 2 × 2 × 2 × 5 × 5 × 37 × 5503. Since it has a total of 8 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81444400)

Multiplication

n×y
n×2 162888800
n×3 244333200
n×4 325777600
n×5 407222000

Division

n÷y
n÷2 40722200
n÷3 27148133.333333
n÷3 20361100
n÷5 16288880

Exponentiation

ny
n2 6633190291360000
n3 5.4023620336564E+23
n4 4.3999213441393E+31
n5 3.5834895392062E+39

Nth Root

y√n
2√n 9024.6551180641
3√n 433.46470704445
4√n 94.998184814575
5√n 38.209578389502

Divisors of 81444400

60 divisors

τ Total Divisors 60
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81444399
Sum of the proper positive divisors of n
A Arithmetic Mean 0.016666666666667
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 60
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81444400 can be divided by 60 positive divisors. The sum of these divisors (counting 81444400) is 1, the average is 0.016666666666667.

Base conversion 81444400

Base System Value
2 Binary 100110110101011111000110000
3 Ternary 12200020210201021
4 Quaternary 10312223320300
5 Quinary 131322210100
6 Senary 12025345224
8 Octal 466537060
10 Decimal 81444400
12 Duodecimal 23338214
16 Hexadecimal 4dabe30
20 Vigesimal 1590b00
36 Base36 1chmwg

Cryptographic Hash Functions

md5 f7f8cf280216cd2c8a7fde8ceb1407a3
sha1 f836e34e35048653ee8ae4deda018f25bd755059
sha256 656bd74672b3ec15df88d84ce8dc687523ff510928aceaec1ba641982943db07
sha512 f649f19f1712e195fe9d2771deb76bcb650fbd5ed2210b100b7cfeea4c22fd0b19cf05f07fd642b49f518f9e7b9e93f5d0bf48ab462f2f829dbe33bcd83f3810
ripemd-160 38cda3b001e3add908e9a94c9f1c6eca7a035865

81444400 as geometric shapes

Circle

Radius = n
Diameter 162888800
Circumference 511730257.43206
Area 2.08387818892E+16

Sphere

Radius = n
Volume 2.262936116929E+24
Surface area 8.3355127556799E+16
Circumference 511730257.43206

Square

Length = n
Perimeter 325777600
Area 6633190291360000
Diagonal 115179775.05934

Cube

Length = n
Surface area 39799141748160000
Volume 5.4023620336564E+23
Space diagonal 141065838.79196

Equilateral Triangle

Length = n
Perimeter 244333200
Area 2.872255650227E+15
Altitude 70532919.395981

Triangular Pyramid

Length = n
Surface area 2.872255650227E+15
Volume 6.3667447140387E+22
Height 38393258.353113