81008080 (number)

81008080 is an even 8-digits composite number following 81008079 and preceding 81008081. In scientific notation, it is written as 8.1008080 × 10^7. The sum of its digits is 25. It has a total of 6 prime factors and 20 positive divisors. There are 32403200 positive integers (up to 81008080) that are relatively prime to 81008080.

Interesting facts

Basic properties

Name

Name eighty-one million eight thousand eighty

Notation

Scientific notation 8.1008080 × 10^7
Engineering notation 8.1008080 × 10^6

Prime Factorization of 81008080

Prime Factorization 2 × 2 × 2 × 2 × 5 × 1012601

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10126010
Product of the distinct prime numbers

The prime factorization of 81008080 is 2 × 2 × 2 × 2 × 5 × 1012601. Since it has a total of 6 prime factors.

Most popular turbo-numbers

7, 6, 3, 23, 374, 973, 3377, 8450, 52586, 25891, 827496, 942787, 3339327, 602892, 19583737, 44056055, 504945163, 245180482, 6457325128, 9527678498

Basic calculations (n = 81008080)

Multiplication

n×y
n×2 162016160
n×3 243024240
n×4 324032320
n×5 405040400

Division

n÷y
n÷2 40504040
n÷3 27002693.333333
n÷3 20252020
n÷5 16201616

Exponentiation

ny
n2 6562309025286400
n3 5.3160005450512E+23
n4 4.3063899743355E+31
n5 3.4885238355217E+39

Nth Root

y√n
2√n 9000.4488776949
3√n 432.68925749847
4√n 94.870695568732
5√n 38.168550536753

Divisors of 81008080

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1012601, 2025202, 4050404, 5063005, 8100808, 10126010, 16201616, 20252020, 40504040, 81008080

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81008079
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81008080 can be divided by 20 positive divisors. The sum of these divisors (counting 81008080) is 1, the average is 0.05.

Base conversion 81008080

Base System Value
2 Binary 100110101000001010111010000
3 Ternary 12122102122012021
4 Quaternary 10311001113100
5 Quinary 131214224310
6 Senary 12012141224
8 Octal 465012720
10 Decimal 81008080
12 Duodecimal 23167814
16 Hexadecimal 4d415d0
20 Vigesimal 1566040
36 Base36 1c8a8g

Cryptographic Hash Functions

md5 1055176fa403b0c8ebf0c8ca2ea5cbea
sha1 7829c417ba243545b529d5d61f245ff5ad7b1def
sha256 8a64b317a5028d16e32113ac0f27a04f0a10adf445e746b24dac7e46820f5dc5
sha512 8e6d961c671591dc14db1b091a0d19d4cb00e830eeb5e0f2ecf39d48b8c94800641aa04aa8622a7eb1fed16478e74f87e743ffcf89da48edd7cd443216dd7777
ripemd-160 82eef07e08af5e6265250662d878d9066140fdb0

81008080 as geometric shapes

Circle

Radius = n
Diameter 162016160
Circumference 508988778.01883
Area 2.0616101824426E+16

Sphere

Radius = n
Volume 2.226761101175E+24
Surface area 8.2464407297703E+16
Circumference 508988778.01883

Square

Length = n
Perimeter 324032320
Area 6562309025286400
Diagonal 114562725.3978

Cube

Length = n
Surface area 39373854151718400
Volume 5.3160005450512E+23
Space diagonal 140310110.3836

Equilateral Triangle

Length = n
Perimeter 243024240
Area 2.841563161691E+15
Altitude 70155055.191802

Triangular Pyramid

Length = n
Surface area 2.841563161691E+15
Volume 6.2649667236618E+22
Height 38187575.132602