81279364 (number)

81279364 is an even 8-digits composite number following 81279363 and preceding 81279365. In scientific notation, it is written as 8.1279364 × 10^7. The sum of its digits is 40. It has a total of 4 prime factors and 12 positive divisors. There are 40617864 positive integers (up to 81279364) that are relatively prime to 81279364.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1279364 × 10^7
Engineering notation 8.1279364 × 10^6

Prime Factorization of 81279364

Prime Factorization 2 × 2 × 2383 × 8527

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40639682
Product of the distinct prime numbers

The prime factorization of 81279364 is 2 × 2 × 2383 × 8527. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 6, 87, 71, 881, 537, 7712, 7621, 84353, 72408, 77012, 657967, 7301844, 439588, 97146254, 92452901, 816897425, 94069533, 1235554204, 1553956620

Basic calculations (n = 81279364)

Multiplication

n×y
n×2 162558728
n×3 243838092
n×4 325117456
n×5 406396820

Division

n÷y
n÷2 40639682
n÷3 27093121.333333
n÷3 20319841
n÷5 16255872.8

Exponentiation

ny
n2 6606335012244496
n3 5.3695870816616E+23
n4 4.3643662294007E+31
n5 3.5473291138877E+39

Nth Root

y√n
2√n 9015.5068631775
3√n 433.17172329908
4√n 94.950022976182
5√n 38.19408051987

Divisors of 81279364

1, 2, 4, 2383, 4766, 8527, 9532, 17054, 34108, 20319841, 40639682, 81279364

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81279363
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81279364 can be divided by 12 positive divisors. The sum of these divisors (counting 81279364) is 1, the average is 0.083333333333333.

Base conversion 81279364

Base System Value
2 Binary 100110110000011100110000100
3 Ternary 12122221102022211
4 Quaternary 10312003212010
5 Quinary 131301414424
6 Senary 12022033204
8 Octal 466034604
10 Decimal 81279364
12 Duodecimal 23278804
16 Hexadecimal 4d83984
20 Vigesimal 157ji84
36 Base36 1ce3k4

Cryptographic Hash Functions

md5 869338c1b2b9a2dbeeee9500ad80aabe
sha1 ba636e3607c44ce9546267548eee147bec9481f9
sha256 61399a6997edc2d35a297bb0dd280ae122b8ad3cbaff87accbbea82e6fdb4517
sha512 403ef2d84fadf0dd9bb975d3b60e7512b94095052dc75cd52d3957d0683b0756b28207f8c0663acc10e400e70bac7c64555f9081bb2ee3032d101ef86210d0d3
ripemd-160 15cf6dc8d2ff67d1bda16de363ca533e2b9435c5

81279364 as geometric shapes

Circle

Radius = n
Diameter 162558728
Circumference 510693305.6617
Area 2.075441354162E+16

Sphere

Radius = n
Volume 2.2492073771412E+24
Surface area 8.3017654166481E+16
Circumference 510693305.6617

Square

Length = n
Perimeter 325117456
Area 6606335012244496
Diagonal 114946378.90986

Cube

Length = n
Surface area 39638010073466976
Volume 5.3695870816616E+23
Space diagonal 140779988.05488

Equilateral Triangle

Length = n
Perimeter 243838092
Area 2.8606269732572E+15
Altitude 70389994.027442

Triangular Pyramid

Length = n
Surface area 2.8606269732572E+15
Volume 6.3281190626911E+22
Height 38315459.63662