81489441 (number)

81489441 is an odd 8-digits composite number following 81489440 and preceding 81489442. In scientific notation, it is written as 8.1489441 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 49053120 positive integers (up to 81489441) that are relatively prime to 81489441.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1489441 × 10^7
Engineering notation 8.1489441 × 10^6

Prime Factorization of 81489441

Prime Factorization 3 × 11 × 149 × 16573

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81489441
Product of the distinct prime numbers

The prime factorization of 81489441 is 3 × 11 × 149 × 16573. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 3, 73, 44, 355, 958, 2774, 260, 548, 58031, 78136, 880025, 953084, 8963514, 38815813, 41596472, 986568202, 465626553, 8305376970, 2667753115

Basic calculations (n = 81489441)

Multiplication

n×y
n×2 162978882
n×3 244468323
n×4 325957764
n×5 407447205

Division

n÷y
n÷2 40744720.5
n÷3 27163147
n÷3 20372360.25
n÷5 16297888.2

Exponentiation

ny
n2 6640528994492481
n3 5.4113299570548E+23
n4 4.4096625326695E+31
n5 3.5934093478588E+39

Nth Root

y√n
2√n 9027.1502147688
3√n 433.54459829922
4√n 95.011316245849
5√n 38.213803645119

Divisors of 81489441

1, 3, 11, 33, 149, 447, 1639, 4917, 16573, 49719, 182303, 546909, 2469377, 7408131, 27163147, 81489441

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 -81489440
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 81489441 can be divided by 16 positive divisors. The sum of these divisors (counting 81489441) is 1, the average is 0.0625.

Base conversion 81489441

Base System Value
2 Binary 100110110110110111000100001
3 Ternary 12200100002111110
4 Quaternary 10312312320201
5 Quinary 131330130231
6 Senary 12030333533
8 Octal 466667041
10 Decimal 81489441
12 Duodecimal 2335a2a9
16 Hexadecimal 4db6e21
20 Vigesimal 15963c1
36 Base36 1cilnl

Cryptographic Hash Functions

md5 91ab1c711ef0956aff2290121d2b216a
sha1 ab13ffa9e2be2d3c61751a7a429fbad6409f5d50
sha256 d994ccbf2e5405a84819f3f514ec65c4823009c6d83ff3dae78d3ae98d4772af
sha512 2e19574a3b05aded5df14426ff12610a85a8b44231054bc45266d30077ca87aba6c7fbd458ad21d2c8221b91079ecfb49b27a46e4e8691e5e2e251c9b84ef057
ripemd-160 4097720d3cb4b139dce61c62c06a21d4cf6e3e03

81489441 as geometric shapes

Circle

Radius = n
Diameter 162978882
Circumference 512013258.38148
Area 2.0861837105048E+16

Sphere

Radius = n
Volume 2.2666925918978E+24
Surface area 8.344734842019E+16
Circumference 512013258.38148

Square

Length = n
Perimeter 325957764
Area 6640528994492481
Diagonal 115243472.6524

Cube

Length = n
Surface area 39843173966954886
Volume 5.4113299570548E+23
Space diagonal 141143852.09239

Equilateral Triangle

Length = n
Perimeter 244468323
Area 2.8754334018988E+15
Altitude 70571926.046193

Triangular Pyramid

Length = n
Surface area 2.8754334018988E+15
Volume 6.377313513119E+22
Height 38414490.884134