81444478 (number)

81444478 is an even 8-digits composite number following 81444477 and preceding 81444479. In scientific notation, it is written as 8.1444478 × 10^7. The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors. There are 40360320 positive integers (up to 81444478) that are relatively prime to 81444478.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1444478 × 10^7
Engineering notation 8.1444478 × 10^6

Prime Factorization of 81444478

Prime Factorization 2 × 313 × 281 × 463

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81444478
Product of the distinct prime numbers

The prime factorization of 81444478 is 2 × 313 × 281 × 463. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 2, 25, 58, 750, 565, 5417, 1747, 90312, 474, 635575, 543404, 7665132, 6355838, 42618042, 59075005, 919139734, 79044231, 263509511, 3843468770

Basic calculations (n = 81444478)

Multiplication

n×y
n×2 162888956
n×3 244333434
n×4 325777912
n×5 407222390

Division

n÷y
n÷2 40722239
n÷3 27148159.333333
n÷3 20361119.5
n÷5 16288895.6

Exponentiation

ny
n2 6633202996692484
n3 5.4023775553366E+23
n4 4.399938199533E+31
n5 3.5835066989323E+39

Nth Root

y√n
2√n 9024.6594395578
3√n 433.46484542203
4√n 94.99820755971
5√n 38.209585708227

Divisors of 81444478

1, 2, 281, 313, 463, 562, 626, 926, 87953, 130103, 144919, 175906, 260206, 289838, 40722239, 81444478

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 -81444477
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 81444478 can be divided by 16 positive divisors. The sum of these divisors (counting 81444478) is 1, the average is 0.0625.

Base conversion 81444478

Base System Value
2 Binary 100110110101011111001111110
3 Ternary 12200020210211011
4 Quaternary 10312223321332
5 Quinary 131322210403
6 Senary 12025345434
8 Octal 466537176
10 Decimal 81444478
12 Duodecimal 2333827a
16 Hexadecimal 4dabe7e
20 Vigesimal 1590b3i
36 Base36 1chmym

Cryptographic Hash Functions

md5 5535d5e75bedf370641e3d4ce49f1513
sha1 b73f3af5915ef26c682fe8377b501ce97fed8256
sha256 3b571dc2908bfdd2674baefaec6d55e2a33b87e4b7c5593285a89e6b4974d428
sha512 281cb5637feb06c6b302cd999521c5b1e9e81605437e80ffef51b6a83a7f78e737af68a1b11d9cffacdf7637807090269928ef7ed2ee3cb852014819228240e3
ripemd-160 8d72aa077229dc599498579ed54c40bfaa7cf528

81444478 as geometric shapes

Circle

Radius = n
Diameter 162888956
Circumference 511730747.52051
Area 2.0838821804179E+16

Sphere

Radius = n
Volume 2.2629426186352E+24
Surface area 8.3355287216716E+16
Circumference 511730747.52051

Square

Length = n
Perimeter 325777912
Area 6633202996692484
Diagonal 115179885.368

Cube

Length = n
Surface area 39799217980154904
Volume 5.4023775553366E+23
Space diagonal 141065973.89193

Equilateral Triangle

Length = n
Perimeter 244333434
Area 2.8722611517974E+15
Altitude 70532986.945963

Triangular Pyramid

Length = n
Surface area 2.8722611517974E+15
Volume 6.3667630065141E+22
Height 38393295.122666