81279404 (number)

81279404 is an even 8-digits composite number following 81279403 and preceding 81279405. In scientific notation, it is written as 8.1279404 × 10^7. The sum of its digits is 35. It has a total of 5 prime factors and 24 positive divisors. There are 40020480 positive integers (up to 81279404) that are relatively prime to 81279404.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred seventy-nine thousand four hundred four

Notation

Scientific notation 8.1279404 × 10^7
Engineering notation 8.1279404 × 10^6

Prime Factorization of 81279404

Prime Factorization 2 × 2 × 97 × 773 × 271

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40639702
Product of the distinct prime numbers

The prime factorization of 81279404 is 2 × 2 × 97 × 773 × 271. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 8, 32, 49, 936, 435, 441, 8409, 42711, 89700, 46939, 61486, 919883, 1523973, 90386462, 96326999, 422909235, 462489774, 8107613336, 5428568341

Basic calculations (n = 81279404)

Multiplication

n×y
n×2 162558808
n×3 243838212
n×4 325117616
n×5 406397020

Division

n÷y
n÷2 40639702
n÷3 27093134.666667
n÷3 20319851
n÷5 16255880.8

Exponentiation

ny
n2 6606341514595216
n3 5.3695950092676E+23
n4 4.3643748207464E+31
n5 3.5473378426288E+39

Nth Root

y√n
2√n 9015.5090815771
3√n 433.17179435798
4√n 94.950034658115
5√n 38.194084279159

Divisors of 81279404

1, 2, 4, 97, 194, 271, 388, 542, 773, 1084, 1546, 3092, 26287, 52574, 74981, 105148, 149962, 209483, 299924, 418966, 837932, 20319851, 40639702, 81279404

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81279403
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81279404 can be divided by 24 positive divisors. The sum of these divisors (counting 81279404) is 1, the average is 0.041666666666667.

Base conversion 81279404

Base System Value
2 Binary 100110110000011100110101100
3 Ternary 12122221102101022
4 Quaternary 10312003212230
5 Quinary 131301420104
6 Senary 12022033312
8 Octal 466034654
10 Decimal 81279404
12 Duodecimal 23278838
16 Hexadecimal 4d839ac
20 Vigesimal 157jia4
36 Base36 1ce3l8

Cryptographic Hash Functions

md5 de87f265e840fc340e9e6f4e9159b8f1
sha1 cdd38014f0ceaaf3c56ff7de997306482d2a071d
sha256 f4825972f5fdae8fb09446a7019c8fb29c374b187fc62245add5c5d988c02459
sha512 b1970f3e239e5a48fd97c60265f073230ac2f7e99d5fdb0e40e48383ff847a9cc5143e2b487d0a39d7417761c0adb8ea7f6c89c1bffecc64edca82cb101d226e
ripemd-160 b210b6d6c6c77148d40688f1a447c15e1d9c164e

81279404 as geometric shapes

Circle

Radius = n
Diameter 162558808
Circumference 510693556.98911
Area 2.0754433969358E+16

Sphere

Radius = n
Volume 2.249210697849E+24
Surface area 8.301773587743E+16
Circumference 510693556.98911

Square

Length = n
Perimeter 325117616
Area 6606341514595216
Diagonal 114946435.4784

Cube

Length = n
Surface area 39638049087571296
Volume 5.3695950092676E+23
Space diagonal 140780057.33692

Equilateral Triangle

Length = n
Perimeter 243838212
Area 2.8606297888576E+15
Altitude 70390028.668459

Triangular Pyramid

Length = n
Surface area 2.8606297888576E+15
Volume 6.3281284054642E+22
Height 38315478.492801