81285404 (number)

81285404 is an even 8-digits composite number following 81285403 and preceding 81285405. In scientific notation, it is written as 8.1285404 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors. There are 38875584 positive integers (up to 81285404) that are relatively prime to 81285404.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred eighty-five thousand four hundred four

Notation

Scientific notation 8.1285404 × 10^7
Engineering notation 8.1285404 × 10^6

Prime Factorization of 81285404

Prime Factorization 2 × 2 × 23 × 883537

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40642702
Product of the distinct prime numbers

The prime factorization of 81285404 is 2 × 2 × 23 × 883537. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 1, 24, 63, 548, 480, 973, 9720, 23779, 89326, 358586, 108056, 456177, 2124865, 34273243, 55660709, 224741383, 617736955, 9828364765, 893081466

Basic calculations (n = 81285404)

Multiplication

n×y
n×2 162570808
n×3 243856212
n×4 325141616
n×5 406427020

Division

n÷y
n÷2 40642702
n÷3 27095134.666667
n÷3 20321351
n÷5 16257080.8

Exponentiation

ny
n2 6607316903443216
n3 5.3707842385241E+23
n4 4.3656636662526E+31
n5 3.5486473483947E+39

Nth Root

y√n
2√n 9015.8418353474
3√n 433.18245292866
4√n 94.95178689918
5√n 38.194648155684

Divisors of 81285404

1, 2, 4, 23, 46, 92, 883537, 1767074, 3534148, 20321351, 40642702, 81285404

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 -81285403
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 81285404 can be divided by 12 positive divisors. The sum of these divisors (counting 81285404) is 1, the average is 0.083333333333333.

Base conversion 81285404

Base System Value
2 Binary 100110110000101000100011100
3 Ternary 12122221201121112
4 Quaternary 10312011010130
5 Quinary 131302113104
6 Senary 12022121152
8 Octal 466050434
10 Decimal 81285404
12 Duodecimal 232801b8
16 Hexadecimal 4d8511c
20 Vigesimal 1580da4
36 Base36 1ce87w

Cryptographic Hash Functions

md5 f90eb589d24c3d08c606bc4b1a0e435f
sha1 af4faa74ac0f450183eb423b206a7cd6e30ad02a
sha256 9ed30a558ebf350403151539675461f209933ad547f74a7c611beb6361bf064e
sha512 139a7e5ed7fee26ab08f0e0c97092d86e2417cd91b071600bb4b0da07113138bc3368f199bf1a9a13ecd060d6635727481e7205df8a08f48c578c49456582e89
ripemd-160 956a8aa569ee2c5d59266f440b84f9a25d438262

81285404 as geometric shapes

Circle

Radius = n
Diameter 162570808
Circumference 510731256.10096
Area 2.0757498243797E+16

Sphere

Radius = n
Volume 2.2497088410351E+24
Surface area 8.3029992975187E+16
Circumference 510731256.10096

Square

Length = n
Perimeter 325141616
Area 6607316903443216
Diagonal 114954920.75978

Cube

Length = n
Surface area 39643901420659296
Volume 5.3707842385241E+23
Space diagonal 140790449.64176

Equilateral Triangle

Length = n
Perimeter 243856212
Area 2.8610521446181E+15
Altitude 70395224.820881

Triangular Pyramid

Length = n
Surface area 2.8610521446181E+15
Volume 6.3295299255837E+22
Height 38318306.919925