81004072 (number)

81004072 is an even 8-digits composite number following 81004071 and preceding 81004073. In scientific notation, it is written as 8.1004072 × 10^7. The sum of its digits is 22. It has a total of 6 prime factors and 32 positive divisors. There are 39371904 positive integers (up to 81004072) that are relatively prime to 81004072.

Interesting facts

Basic properties

Name

Name eighty-one million four thousand seventy-two

Notation

Scientific notation 8.1004072 × 10^7
Engineering notation 8.1004072 × 10^6

Prime Factorization of 81004072

Prime Factorization 2 × 2 × 2 × 67 × 79 × 1913

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20251018
Product of the distinct prime numbers

The prime factorization of 81004072 is 2 × 2 × 2 × 67 × 79 × 1913. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 3, 6, 12, 890, 227, 6784, 3017, 70878, 1027, 774397, 988220, 7126456, 9785628, 73059780, 72202133, 126197119, 670810562, 2404377594, 7582787128

Basic calculations (n = 81004072)

Multiplication

n×y
n×2 162008144
n×3 243012216
n×4 324016288
n×5 405020360

Division

n÷y
n÷2 40502036
n÷3 27001357.333333
n÷3 20251018
n÷5 16200814.4

Exponentiation

ny
n2 6561659680581184
n3 5.315211532053E+23
n4 4.3055377763765E+31
n5 3.4876609203632E+39

Nth Root

y√n
2√n 9000.2262193792
3√n 432.68212139079
4√n 94.869522078374
5√n 38.168172839668

Divisors of 81004072

1, 2, 4, 8, 67, 79, 134, 158, 268, 316, 536, 632, 1913, 3826, 5293, 7652, 10586, 15304, 21172, 42344, 128171, 151127, 256342, 302254, 512684, 604508, 1025368, 1209016, 10125509, 20251018, 40502036, 81004072

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81004071
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81004072 can be divided by 32 positive divisors. The sum of these divisors (counting 81004072) is 1, the average is 0.03125.

Base conversion 81004072

Base System Value
2 Binary 100110101000000011000101000
3 Ternary 12122102102200211
4 Quaternary 10311000120220
5 Quinary 131214112242
6 Senary 12012110504
8 Octal 465003050
10 Decimal 81004072
12 Duodecimal 23165434
16 Hexadecimal 4d40628
20 Vigesimal 1565a3c
36 Base36 1c8754

Cryptographic Hash Functions

md5 e85fe1fc59d2ba971d1a5883b7159a19
sha1 1933682dfd12e9c1bdf15072ad5c13f61ba74d04
sha256 e8b54a563237f0a6ac87d0bd5870906d1f2c62ea4991345a3477de5903eceacb
sha512 3ffcc989aa6eadeb01ba66151570f166d806e432566a48da724a60655e55114656536ab19a247dfbdb68a048446dc42ac2017291e920780bd5ce124382629a8e
ripemd-160 a71387b2ee289cfbcb7df3b76cad5aa429eceb15

81004072 as geometric shapes

Circle

Radius = n
Diameter 162008144
Circumference 508963595.01212
Area 2.061406184787E+16

Sphere

Radius = n
Volume 2.2264306001831E+24
Surface area 8.2456247391481E+16
Circumference 508963595.01212

Square

Length = n
Perimeter 324016288
Area 6561659680581184
Diagonal 114557057.22985

Cube

Length = n
Surface area 39369958083487104
Volume 5.315211532053E+23
Space diagonal 140303168.32397

Equilateral Triangle

Length = n
Perimeter 243012216
Area 2.8412819871857E+15
Altitude 70151584.161984

Triangular Pyramid

Length = n
Surface area 2.8412819871857E+15
Volume 6.264036862926E+22
Height 38185685.743282