81279448 (number)

81279448 is an even 8-digits composite number following 81279447 and preceding 81279449. In scientific notation, it is written as 8.1279448 × 10^7. The sum of its digits is 43. It has a total of 5 prime factors and 16 positive divisors. There are 38249088 positive integers (up to 81279448) that are relatively prime to 81279448.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1279448 × 10^7
Engineering notation 8.1279448 × 10^6

Prime Factorization of 81279448

Prime Factorization 2 × 2 × 2 × 17 × 597643

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20319862
Product of the distinct prime numbers

The prime factorization of 81279448 is 2 × 2 × 2 × 17 × 597643. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 5, 77, 74, 456, 453, 4951, 2684, 32443, 6030, 83709, 166089, 794996, 5966788, 38179531, 79984913, 433559715, 583720092, 4451044606, 7815392758

Basic calculations (n = 81279448)

Multiplication

n×y
n×2 162558896
n×3 243838344
n×4 325117792
n×5 406397240

Division

n÷y
n÷2 40639724
n÷3 27093149.333333
n÷3 20319862
n÷5 16255889.6

Exponentiation

ny
n2 6606348667184704
n3 5.3696037296431E+23
n4 4.3643842712413E+31
n5 3.5473474442638E+39

Nth Root

y√n
2√n 9015.5115218162
3√n 433.17187252274
4√n 94.950047508235
5√n 38.194088414375

Divisors of 81279448

1, 2, 4, 8, 17, 34, 68, 136, 597643, 1195286, 2390572, 4781144, 10159931, 20319862, 40639724, 81279448

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 -81279447
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 81279448 can be divided by 16 positive divisors. The sum of these divisors (counting 81279448) is 1, the average is 0.0625.

Base conversion 81279448

Base System Value
2 Binary 100110110000011100111011000
3 Ternary 12122221102102221
4 Quaternary 10312003213120
5 Quinary 131301420243
6 Senary 12022033424
8 Octal 466034730
10 Decimal 81279448
12 Duodecimal 23278874
16 Hexadecimal 4d839d8
20 Vigesimal 157jic8
36 Base36 1ce3mg

Cryptographic Hash Functions

md5 87286d0b0f4fc3c9710c9aed247a3a24
sha1 53f7fc6c24159065c2cc6da765917c4a8ed13153
sha256 9a99a57f015529fc9b71c584a345e51d60e21881042d9ec68e7cacc94647d144
sha512 6983fd42a6d6d721a4db7f59199b9cd155ddacf4bd7194c6a51a9474c43af364e0390a76ddb1fa0947f392b8dcca2a4f6bb36647d999817ecd6ceb04cc820b3c
ripemd-160 1a422904dee9ebf3fd46a65ccebb29854941476b

81279448 as geometric shapes

Circle

Radius = n
Diameter 162558896
Circumference 510693833.44927
Area 2.075445643988E+16

Sphere

Radius = n
Volume 2.2492143506313E+24
Surface area 8.3017825759521E+16
Circumference 510693833.44927

Square

Length = n
Perimeter 325117792
Area 6606348667184704
Diagonal 114946497.7038

Cube

Length = n
Surface area 39638092003108224
Volume 5.3696037296431E+23
Space diagonal 140780133.54715

Equilateral Triangle

Length = n
Perimeter 243838344
Area 2.8606328860197E+15
Altitude 70390066.773576

Triangular Pyramid

Length = n
Surface area 2.8606328860197E+15
Volume 6.3281386825253E+22
Height 38315499.2346