81508742 (number)

81508742 is an even 8-digits composite number following 81508741 and preceding 81508743. In scientific notation, it is written as 8.1508742 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors. There are 34898568 positive integers (up to 81508742) that are relatively prime to 81508742.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1508742 × 10^7
Engineering notation 8.1508742 × 10^6

Prime Factorization of 81508742

Prime Factorization 2 × 7 × 1367 × 4259

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81508742
Product of the distinct prime numbers

The prime factorization of 81508742 is 2 × 7 × 1367 × 4259. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 9, 93, 43, 253, 779, 6893, 5732, 90506, 93514, 488012, 166925, 8852186, 5292840, 45726116, 66010210, 820405755, 45154425, 644520217, 4856894424

Basic calculations (n = 81508742)

Multiplication

n×y
n×2 163017484
n×3 244526226
n×4 326034968
n×5 407543710

Division

n÷y
n÷2 40754371
n÷3 27169580.666667
n÷3 20377185.5
n÷5 16301748.4

Exponentiation

ny
n2 6643675022422564
n3 5.4151759333448E+23
n4 4.4138417803561E+31
n5 3.5976669090387E+39

Nth Root

y√n
2√n 9028.2192042506
3√n 433.57882434383
4√n 95.016941669634
5√n 38.215613682708

Divisors of 81508742

1, 2, 7, 14, 1367, 2734, 4259, 8518, 9569, 19138, 29813, 59626, 5822053, 11644106, 40754371, 81508742

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 -81508741
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 81508742 can be divided by 16 positive divisors. The sum of these divisors (counting 81508742) is 1, the average is 0.0625.

Base conversion 81508742

Base System Value
2 Binary 100110110111011100110000110
3 Ternary 12200101001222022
4 Quaternary 10312323212012
5 Quinary 131331234432
6 Senary 12031003142
8 Octal 466734606
10 Decimal 81508742
12 Duodecimal 233694b2
16 Hexadecimal 4dbb986
20 Vigesimal 1598bh2
36 Base36 1cj0jq

Cryptographic Hash Functions

md5 896f6905da51578f40d674cf3f037148
sha1 14110727056e034e7c527b82208d6e509ca852a9
sha256 772dd608cbe1757b69229fe2352011651586d2bbba5d3abb317a9dea4f987423
sha512 8fad02b86e9cc8a517a07bed4366f2f3593201eb118f1a0a609e4725afbb83606d719dfd3e8d4b65c9c16607dfd7b98e160c22738999ffb6d56153419ca67a86
ripemd-160 f7257b2c4074b5193294eeb7cf4e3528d33d85aa

81508742 as geometric shapes

Circle

Radius = n
Diameter 163017484
Circumference 512134530.14109
Area 2.0871720643281E+16

Sphere

Radius = n
Volume 2.268303590679E+24
Surface area 8.3486882573123E+16
Circumference 512134530.14109

Square

Length = n
Perimeter 326034968
Area 6643675022422564
Diagonal 115270768.38837

Cube

Length = n
Surface area 39862050134535384
Volume 5.4151759333448E+23
Space diagonal 141177282.40502

Equilateral Triangle

Length = n
Perimeter 244526226
Area 2.876795671953E+15
Altitude 70588641.202512

Triangular Pyramid

Length = n
Surface area 2.876795671953E+15
Volume 6.3818460396439E+22
Height 38423589.46279