81489464 (number)

81489464 is an even 8-digits composite number following 81489463 and preceding 81489465. In scientific notation, it is written as 8.1489464 × 10^7. The sum of its digits is 44. It has a total of 6 prime factors and 32 positive divisors. There are 34804320 positive integers (up to 81489464) that are relatively prime to 81489464.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1489464 × 10^7
Engineering notation 8.1489464 × 10^6

Prime Factorization of 81489464

Prime Factorization 2 × 2 × 2 × 7 × 311 × 4679

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20372366
Product of the distinct prime numbers

The prime factorization of 81489464 is 2 × 2 × 2 × 7 × 311 × 4679. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81489464)

Multiplication

n×y
n×2 162978928
n×3 244468392
n×4 325957856
n×5 407447320

Division

n÷y
n÷2 40744732
n÷3 27163154.666667
n÷3 20372366
n÷5 16297892.8

Exponentiation

ny
n2 6640532743007296
n3 5.4113345390211E+23
n4 4.4096675110952E+31
n5 3.5934144189736E+39

Nth Root

y√n
2√n 9027.1514887034
3√n 433.54463908784
4√n 95.011322949969
5√n 38.213805802251

Divisors of 81489464

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81489463
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81489464 can be divided by 32 positive divisors. The sum of these divisors (counting 81489464) is 1, the average is 0.03125.

Base conversion 81489464

Base System Value
2 Binary 100110110110110111000111000
3 Ternary 12200100002112022
4 Quaternary 10312312320320
5 Quinary 131330130324
6 Senary 12030334012
8 Octal 466667070
10 Decimal 81489464
12 Duodecimal 2335a308
16 Hexadecimal 4db6e38
20 Vigesimal 15963d4
36 Base36 1cilo8

Cryptographic Hash Functions

md5 d60cb2fad73597ce22552059292becaa
sha1 ea5d7ceaabce43f71a6be999861f0b7723c8e2c1
sha256 97c59e8acde95c8f8b302aa8055f204bdfbce8a19731ae5d44bb07813d931d7a
sha512 3723ff8144695aa0b95a1d97bdfd5e1f5dc95e65cb02735557b68cde59f31c8ee3a6231e61c2f40695c837b870d2f685c73007914ad69d748683b4ea880054fe
ripemd-160 f6c624183753b2e7c374f4e6e473ffc8f74c9001

81489464 as geometric shapes

Circle

Radius = n
Diameter 162978928
Circumference 512013402.89474
Area 2.0861848881354E+16

Sphere

Radius = n
Volume 2.2666945111874E+24
Surface area 8.3447395525417E+16
Circumference 512013402.89474

Square

Length = n
Perimeter 325957856
Area 6640532743007296
Diagonal 115243505.17931

Cube

Length = n
Surface area 39843196458043776
Volume 5.4113345390211E+23
Space diagonal 141143891.92955

Equilateral Triangle

Length = n
Perimeter 244468392
Area 2.8754350250533E+15
Altitude 70571945.964777

Triangular Pyramid

Length = n
Surface area 2.8754350250533E+15
Volume 6.3773189130181E+22
Height 38414501.726438