81279424 (number)

81279424 is an even 8-digits composite number following 81279423 and preceding 81279425. In scientific notation, it is written as 8.1279424 × 10^7. The sum of its digits is 37. It has a total of 8 prime factors and 28 positive divisors. There are 38872064 positive integers (up to 81279424) that are relatively prime to 81279424.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1279424 × 10^7
Engineering notation 8.1279424 × 10^6

Prime Factorization of 81279424

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 23 × 55217

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 2539982
Product of the distinct prime numbers

The prime factorization of 81279424 is 2 × 2 × 2 × 2 × 2 × 2 × 23 × 55217. Since it has a total of 8 prime factors.

Most popular turbo-numbers

8, 2, 56, 67, 462, 690, 706, 5903, 54336, 31293, 758795, 636135, 9139786, 3071098, 74455617, 34617474, 791719682, 817895814, 1159319679, 8187610978

Basic calculations (n = 81279424)

Multiplication

n×y
n×2 162558848
n×3 243838272
n×4 325117696
n×5 406397120

Division

n÷y
n÷2 40639712
n÷3 27093141.333333
n÷3 20319856
n÷5 16255884.8

Exponentiation

ny
n2 6606344765771776
n3 5.3695989730734E+23
n4 4.364379116424E+31
n5 3.5473422070057E+39

Nth Root

y√n
2√n 9015.5101907768
3√n 433.17182988742
4√n 94.950040499079
5√n 38.194086158803

Divisors of 81279424

1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 184, 368, 736, 1472, 55217, 110434, 220868, 441736, 883472, 1269991, 1766944, 2539982, 3533888, 5079964, 10159928, 20319856, 40639712, 81279424

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81279423
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81279424 can be divided by 28 positive divisors. The sum of these divisors (counting 81279424) is 1, the average is 0.035714285714286.

Base conversion 81279424

Base System Value
2 Binary 100110110000011100111000000
3 Ternary 12122221102102001
4 Quaternary 10312003213000
5 Quinary 131301420144
6 Senary 12022033344
8 Octal 466034700
10 Decimal 81279424
12 Duodecimal 23278854
16 Hexadecimal 4d839c0
20 Vigesimal 157jib4
36 Base36 1ce3ls

Cryptographic Hash Functions

md5 0379ac29a60f19b3f2910f471de40528
sha1 7abc20cf6e96a095c7026715546ba37894e42d33
sha256 6d41560642743ff39b5c073e0c3f92ccd339ec29cafeba6c5b71c09d04a2323b
sha512 3456b906c03503f01165709b6fc819cd277c3dc9d0f0704a3beb82d7845a5310fcc09ff3ecd1aee5909ae4af2d94a8128a8ee585f4b98194b8b4d0c1f439a8ac
ripemd-160 98041dace1fa7287d970b9dc13b63af783bf8c1a

81279424 as geometric shapes

Circle

Radius = n
Diameter 162558848
Circumference 510693682.65282
Area 2.075444418323E+16

Sphere

Radius = n
Volume 2.2492123582041E+24
Surface area 8.301777673292E+16
Circumference 510693682.65282

Square

Length = n
Perimeter 325117696
Area 6606344765771776
Diagonal 114946463.76267

Cube

Length = n
Surface area 39638068594630656
Volume 5.3695989730734E+23
Space diagonal 140780091.97793

Equilateral Triangle

Length = n
Perimeter 243838272
Area 2.8606311966584E+15
Altitude 70390045.988967

Triangular Pyramid

Length = n
Surface area 2.8606311966584E+15
Volume 6.3281330768543E+22
Height 38315487.920891