81489478 (number)

81489478 is an even 8-digits composite number following 81489477 and preceding 81489479. In scientific notation, it is written as 8.1489478 × 10^7. The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors. There are 33719616 positive integers (up to 81489478) that are relatively prime to 81489478.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1489478 × 10^7
Engineering notation 8.1489478 × 10^6

Prime Factorization of 81489478

Prime Factorization 2 × 203 × 200713

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81489478
Product of the distinct prime numbers

The prime factorization of 81489478 is 2 × 203 × 200713. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81489478)

Multiplication

n×y
n×2 162978956
n×3 244468434
n×4 325957912
n×5 407447390

Division

n÷y
n÷2 40744739
n÷3 27163159.333333
n÷3 20372369.5
n÷5 16297895.6

Exponentiation

ny
n2 6640535024712484
n3 5.4113373280454E+23
n4 4.4096705414433E+31
n5 3.5934175057419E+39

Nth Root

y√n
2√n 9027.1522641418
3√n 433.54466391569
4√n 95.011327030738
5√n 38.213807115288

Divisors of 81489478

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81489477
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81489478 can be divided by 8 positive divisors. The sum of these divisors (counting 81489478) is 1, the average is 0.125.

Base conversion 81489478

Base System Value
2 Binary 100110110110110111001000110
3 Ternary 12200100002112211
4 Quaternary 10312312321012
5 Quinary 131330130403
6 Senary 12030334034
8 Octal 466667106
10 Decimal 81489478
12 Duodecimal 2335a31a
16 Hexadecimal 4db6e46
20 Vigesimal 15963di
36 Base36 1cilom

Cryptographic Hash Functions

md5 ab93aadcd6d97e7f553b2f5f2f88fd28
sha1 0b1002d44e63cd6b1b6d7788af25d0fd42ecd36a
sha256 d15ac483eb2d3fb44ec3210797799b576dab0b17d39d4fa82c45464953a5ef90
sha512 f5f0f1560688a338e3f1175c00e7297c97fe76b962889785d27ab837c74a3ff3accb2b2e66b10928447309289022f7a23f52004da6f3e485e8a761608e37d3a7
ripemd-160 f505476d22dd2380d1c32ff69dd93e4390648aed

81489478 as geometric shapes

Circle

Radius = n
Diameter 162978956
Circumference 512013490.85933
Area 2.0861856049542E+16

Sphere

Radius = n
Volume 2.2666956794511E+24
Surface area 8.344742419817E+16
Circumference 512013490.85933

Square

Length = n
Perimeter 325957912
Area 6640535024712484
Diagonal 115243524.9783

Cube

Length = n
Surface area 39843210148274904
Volume 5.4113373280454E+23
Space diagonal 141143916.17827

Equilateral Triangle

Length = n
Perimeter 244468434
Area 2.8754360130607E+15
Altitude 70571958.089133

Triangular Pyramid

Length = n
Surface area 2.8754360130607E+15
Volume 6.3773221999146E+22
Height 38414508.326101