81489216 (number)

81489216 is an even 8-digits composite number following 81489215 and preceding 81489217. In scientific notation, it is written as 8.1489216 × 10^7. The sum of its digits is 39. It has a total of 8 prime factors and 28 positive divisors. There are 27163008 positive integers (up to 81489216) that are relatively prime to 81489216.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred eighty-nine thousand two hundred sixteen

Notation

Scientific notation 8.1489216 × 10^7
Engineering notation 8.1489216 × 10^6

Prime Factorization of 81489216

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 3 × 424423

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 2546538
Product of the distinct prime numbers

The prime factorization of 81489216 is 2 × 2 × 2 × 2 × 2 × 2 × 3 × 424423. Since it has a total of 8 prime factors.

Most popular turbo-numbers

6, 4, 15, 97, 36, 528, 889, 8269, 47838, 16838, 525941, 705782, 9369958, 4858029, 30028278, 33114044, 480610750, 196166144, 5642645180, 4061021940

Basic calculations (n = 81489216)

Multiplication

n×y
n×2 162978432
n×3 244467648
n×4 325956864
n×5 407446080

Division

n÷y
n÷2 40744608
n÷3 27163072
n÷3 20372304
n÷5 16297843.2

Exponentiation

ny
n2 6640492324294656
n3 5.4112851336079E+23
n4 4.4096138309016E+31
n5 3.5933597394293E+39

Nth Root

y√n
2√n 9027.1377523554
3√n 433.54419927973
4√n 95.011250661989
5√n 38.213782542716

Divisors of 81489216

1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 192, 424423, 848846, 1273269, 1697692, 2546538, 3395384, 5093076, 6790768, 10186152, 13581536, 20372304, 27163072, 40744608, 81489216

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81489215
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81489216 can be divided by 28 positive divisors. The sum of these divisors (counting 81489216) is 1, the average is 0.035714285714286.

Base conversion 81489216

Base System Value
2 Binary 100110110110110110101000000
3 Ternary 12200100002012010
4 Quaternary 10312312311000
5 Quinary 131330123331
6 Senary 12030332520
8 Octal 466666500
10 Decimal 81489216
12 Duodecimal 2335a140
16 Hexadecimal 4db6d40
20 Vigesimal 159630g
36 Base36 1cilhc

Cryptographic Hash Functions

md5 346dd2fb83fac3edd7aa134a8e5ecb16
sha1 5e6d582f68417e0839ec2cd5d2bb29fa7b9d52a5
sha256 7cfa80f5eafc5ac78a2e0f91572e2462b9acdc913fef095100d1023ebf88479b
sha512 9d8f92e317877be7d9b66b894e27e7098320b61515cb25fc16a730dfc733a8e38dbfa06fe46e883eaf6ef77944b1724601555a2154be4c5261fe34870d2d26f1
ripemd-160 3e21536e059044280a42bb145f229356c40731ef

81489216 as geometric shapes

Circle

Radius = n
Diameter 162978432
Circumference 512011844.66478
Area 2.0861721902224E+16

Sphere

Radius = n
Volume 2.2666738162963E+24
Surface area 8.3446887608894E+16
Circumference 512011844.66478

Square

Length = n
Perimeter 325956864
Area 6640492324294656
Diagonal 115243154.45435

Cube

Length = n
Surface area 39842953945767936
Volume 5.4112851336079E+23
Space diagonal 141143462.38095

Equilateral Triangle

Length = n
Perimeter 244467648
Area 2.8754175232374E+15
Altitude 70571731.190477

Triangular Pyramid

Length = n
Surface area 2.8754175232374E+15
Volume 6.3772606881802E+22
Height 38414384.818117