81738120 (number)

81738120 is an even 8-digits composite number following 81738119 and preceding 81738121. In scientific notation, it is written as 8.1738120 × 10^7. The sum of its digits is 30. It has a total of 5 prime factors and 16 positive divisors. There are 21796800 positive integers (up to 81738120) that are relatively prime to 81738120.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1738120 × 10^7
Engineering notation 8.1738120 × 10^6

Prime Factorization of 81738120

Prime Factorization 2 × 2 × 2 × 15 × 681151

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20434530
Product of the distinct prime numbers

The prime factorization of 81738120 is 2 × 2 × 2 × 15 × 681151. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 7, 56, 62, 397, 685, 4216, 1844, 7898, 15763, 77516, 867011, 9692957, 5430939, 92071548, 65544547, 840496702, 902145482, 5228603333, 4300307962

Basic calculations (n = 81738120)

Multiplication

n×y
n×2 163476240
n×3 245214360
n×4 326952480
n×5 408690600

Division

n÷y
n÷2 40869060
n÷3 27246040
n÷3 20434530
n÷5 16347624

Exponentiation

ny
n2 6681120261134400
n3 5.4610220963903E+23
n4 4.4637367943741E+31
n5 3.6485745374696E+39

Nth Root

y√n
2√n 9040.9136706419
3√n 433.98516234039
4√n 95.083719272239
5√n 38.237098421907

Divisors of 81738120

1, 2, 4, 8, 15, 30, 60, 120, 681151, 1362302, 2724604, 5449208, 10217265, 20434530, 40869060, 81738120

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81738119
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81738120 can be divided by 16 positive divisors. The sum of these divisors (counting 81738120) is 1, the average is 0.0625.

Base conversion 81738120

Base System Value
2 Binary 100110111110011100110001000
3 Ternary 12200210201121210
4 Quaternary 10313303212020
5 Quinary 131411104440
6 Senary 12035533120
8 Octal 467634610
10 Decimal 81738120
12 Duodecimal 2345a1a0
16 Hexadecimal 4df3988
20 Vigesimal 15ah560
36 Base36 1cnxjc

Cryptographic Hash Functions

md5 132df98e1ce74e5bb300027b964b70f8
sha1 7e406a054c03329bbdccc771cc085f0043fe60ac
sha256 993560615978d8fed7699c456379952c2a12688342ea34b73bd9b229b8c381c5
sha512 1d7ce9145a84f964756d090f71949704f630a0c5eabcfb6da260ee4dd25393c01133495c959d4b66924d0e3279b9eeaaf9172c358f2631b4f06f975082f88c23
ripemd-160 c929a6d952f7e561caaa8d31c3215ebd20bf3a42

81738120 as geometric shapes

Circle

Radius = n
Diameter 163476240
Circumference 513575754.62048
Area 2.098935833013E+16

Sphere

Radius = n
Volume 2.2875075865482E+24
Surface area 8.3957433320519E+16
Circumference 513575754.62048

Square

Length = n
Perimeter 326952480
Area 6681120261134400
Diagonal 115595157.86688

Cube

Length = n
Surface area 40086721566806400
Volume 5.4610220963903E+23
Space diagonal 141574576.75516

Equilateral Triangle

Length = n
Perimeter 245214360
Area 2.8930099359407E+15
Altitude 70787288.377581

Triangular Pyramid

Length = n
Surface area 2.8930099359407E+15
Volume 6.4358762609453E+22
Height 38531719.28896