81837488 (number)

81837488 is an even 8-digits composite number following 81837487 and preceding 81837489. In scientific notation, it is written as 8.1837488 × 10^7. The sum of its digits is 47. It has a total of 6 prime factors and 20 positive divisors. There are 39812544 positive integers (up to 81837488) that are relatively prime to 81837488.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred thirty-seven thousand four hundred eighty-eight

Notation

Scientific notation 8.1837488 × 10^7
Engineering notation 8.1837488 × 10^6

Prime Factorization of 81837488

Prime Factorization 2 × 2 × 2 × 2 × 37 × 138239

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10229686
Product of the distinct prime numbers

The prime factorization of 81837488 is 2 × 2 × 2 × 2 × 37 × 138239. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81837488)

Multiplication

n×y
n×2 163674976
n×3 245512464
n×4 327349952
n×5 409187440

Division

n÷y
n÷2 40918744
n÷3 27279162.666667
n÷3 20459372
n÷5 16367497.6

Exponentiation

ny
n2 6697374442150144
n3 5.4809630054097E+23
n4 4.4854824418366E+31
n5 3.6708061550801E+39

Nth Root

y√n
2√n 9046.4074637394
3√n 434.16095455014
4√n 95.112604126579
5√n 38.246390775878

Divisors of 81837488

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 -81837487
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 81837488 can be divided by 20 positive divisors. The sum of these divisors (counting 81837488) is 1, the average is 0.05.

Base conversion 81837488

Base System Value
2 Binary 100111000001011110110110000
3 Ternary 12200222202221002
4 Quaternary 10320023312300
5 Quinary 131422244423
6 Senary 12042021132
8 Octal 470136660
10 Decimal 81837488
12 Duodecimal 234a77a8
16 Hexadecimal 4e0bdb0
20 Vigesimal 15b9de8
36 Base36 1cq27k

Cryptographic Hash Functions

md5 72637f4c38a463a2147930ed49bf354b
sha1 dc9b9adfe386a447ed745ae0a91a4a765527c63d
sha256 79f8d70ce1eeafefffc973bd63d939c71ef272291cb9a70d26e9c4d30e0cf010
sha512 7195c82ff3b0dc2f9c35fb267528bf3f22e9077799e17f2ee9da29d83043502f34792913cc1aa4b131f31f8278e5f2936546c475cd19e6672ed71f259469fb35
ripemd-160 bbcb803d3b617255f25e46c93f1a0edf1df0feef

81837488 as geometric shapes

Circle

Radius = n
Diameter 163674976
Circumference 514200102.17809
Area 2.1040422345799E+16

Sphere

Radius = n
Volume 2.2958604149857E+24
Surface area 8.4161689383196E+16
Circumference 514200102.17809

Square

Length = n
Perimeter 327349952
Area 6697374442150144
Diagonal 115735685.44015

Cube

Length = n
Surface area 40184246652900864
Volume 5.4809630054097E+23
Space diagonal 141746687.17981

Equilateral Triangle

Length = n
Perimeter 245512464
Area 2.9000482027793E+15
Altitude 70873343.589904

Triangular Pyramid

Length = n
Surface area 2.9000482027793E+15
Volume 6.4593768475963E+22
Height 38578561.813382