81508746 (number)

81508746 is an even 8-digits composite number following 81508745 and preceding 81508747. In scientific notation, it is written as 8.1508746 × 10^7. The sum of its digits is 39. It has a total of 6 prime factors and 56 positive divisors. There are 23324400 positive integers (up to 81508746) that are relatively prime to 81508746.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred eight thousand seven hundred forty-six

Notation

Scientific notation 8.1508746 × 10^7
Engineering notation 8.1508746 × 10^6

Prime Factorization of 81508746

Prime Factorization 2 × 3 × 209 × 19 × 11 × 311

Composite number
ω Distinct Factors 6
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 81508746
Product of the distinct prime numbers

The prime factorization of 81508746 is 2 × 3 × 209 × 19 × 11 × 311. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81508746)

Multiplication

n×y
n×2 163017492
n×3 244526238
n×4 326034984
n×5 407543730

Division

n÷y
n÷2 40754373
n÷3 27169582
n÷3 20377186.5
n÷5 16301749.2

Exponentiation

ny
n2 6643675674492516
n3 5.4151767305859E+23
n4 4.4138426467844E+31
n5 3.5976677918071E+39

Nth Root

y√n
2√n 9028.2194257783
3√n 433.57883143639
4√n 95.016942835361
5√n 38.21561405779

Divisors of 81508746

56 divisors

τ Total Divisors 56
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81508745
Sum of the proper positive divisors of n
A Arithmetic Mean 0.017857142857143
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 56
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81508746 can be divided by 56 positive divisors. The sum of these divisors (counting 81508746) is 1, the average is 0.017857142857143.

Base conversion 81508746

Base System Value
2 Binary 100110110111011100110001010
3 Ternary 12200101001222110
4 Quaternary 10312323212022
5 Quinary 131331234441
6 Senary 12031003150
8 Octal 466734612
10 Decimal 81508746
12 Duodecimal 233694b6
16 Hexadecimal 4dbb98a
20 Vigesimal 1598bh6
36 Base36 1cj0ju

Cryptographic Hash Functions

md5 afe47b60063d99931f7ac1d84a22947c
sha1 f3a5865fd9e8590c1238b5951b56a4b25dd32b36
sha256 6c4f546c30ea61fd2e2e1d7f45924a4c46e6c1e2ada20cb71c56e65279fe5f77
sha512 f420da2d4e7dca02c64d05f49edf98c511f3f88e6af8774e643edcf6476d4765e321216878cdaed2f50bf61d98e42be64d4b8fd0168091cd2e11591bb1dbd896
ripemd-160 f51420083cce314181b6a7baebb3ab67b2e0fbc2

81508746 as geometric shapes

Circle

Radius = n
Diameter 163017492
Circumference 512134555.27383
Area 2.0871722691819E+16

Sphere

Radius = n
Volume 2.2683039246265E+24
Surface area 8.3486890767276E+16
Circumference 512134555.27383

Square

Length = n
Perimeter 326034984
Area 6643675674492516
Diagonal 115270774.04522

Cube

Length = n
Surface area 39862054046955096
Volume 5.4151767305859E+23
Space diagonal 141177289.33323

Equilateral Triangle

Length = n
Perimeter 244526238
Area 2.8767959543076E+15
Altitude 70588644.666613

Triangular Pyramid

Length = n
Surface area 2.8767959543076E+15
Volume 6.3818469792015E+22
Height 38423591.348408