81103428 (number)

81103428 is an even 8-digits composite number following 81103427 and preceding 81103429. In scientific notation, it is written as 8.1103428 × 10^7. The sum of its digits is 27. It has a total of 7 prime factors and 72 positive divisors. There are 22153824 positive integers (up to 81103428) that are relatively prime to 81103428.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred three thousand four hundred twenty-eight

Notation

Scientific notation 8.1103428 × 10^7
Engineering notation 8.1103428 × 10^6

Prime Factorization of 81103428

Prime Factorization 2 × 2 × 3 × 3 × 49 × 23 × 1999

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 13517238
Product of the distinct prime numbers

The prime factorization of 81103428 is 2 × 2 × 3 × 3 × 49 × 23 × 1999. Since it has a total of 7 prime factors.

Most popular turbo-numbers

9, 5, 28, 43, 697, 423, 4757, 4640, 62529, 4297, 750605, 783947, 8650763, 71747, 9407745, 93232661, 204622007, 436953721, 6540936850, 58058098

Basic calculations (n = 81103428)

Multiplication

n×y
n×2 162206856
n×3 243310284
n×4 324413712
n×5 405517140

Division

n÷y
n÷2 40551714
n÷3 27034476
n÷3 20275857
n÷5 16220685.6

Exponentiation

ny
n2 6577766033351184
n3 5.3347937388674E+23
n4 4.3267005989509E+31
n5 3.5091025050457E+39

Nth Root

y√n
2√n 9005.7441669192
3√n 432.85895200928
4√n 94.898599393875
5√n 38.177531326715

Divisors of 81103428

1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 49, 69, 92, 98, 138, 147, 196, 207, 276, 294, 414, 441, 588, 828, 882, 1127, 1764, 1999, 2254, 3381, 3998, 4508, 5997, 6762, 7996, 10143, 11994, 13524, 17991, 20286, 23988, 35982, 40572, 45977, 71964, 91954, 97951, 137931, 183908, 195902, 275862, 293853, 391804, 413793, 551724, 587706, 827586, 881559, 1175412, 1655172, 1763118, 2252873, 3526236, 4505746, 6758619, 9011492, 13517238, 20275857, 27034476, 40551714, 81103428

72 divisors

τ Total Divisors 72
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81103427
Sum of the proper positive divisors of n
A Arithmetic Mean 0.013888888888889
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 72
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81103428 can be divided by 72 positive divisors. The sum of these divisors (counting 81103428) is 1, the average is 0.013888888888889.

Base conversion 81103428

Base System Value
2 Binary 100110101011000101001000100
3 Ternary 12122121110222200
4 Quaternary 10311120221010
5 Quinary 131230302203
6 Senary 12014154500
8 Octal 465305104
10 Decimal 81103428
12 Duodecimal 231b2a30
16 Hexadecimal 4d58a44
20 Vigesimal 156hib8
36 Base36 1cabt0

Cryptographic Hash Functions

md5 a7d3a90ca2d5ab97aeb434da37d97618
sha1 c16e4c0fb59ad7ed1682ee0dcd7a6b9bec1b492c
sha256 fa738e783945ed560544c6b1f89e0859f833b6447a4b5dcfa3737b76d4d2c664
sha512 a2df0f43262293ba4c666f60a32e34cdbcc606f680480f3d4dc8c30ca57ec3a3ef3f187545f196ffebf7d85484ed64e619343a50278fba68ebc0366cdb303b87
ripemd-160 f9438e001464d4394f1afa59e4cadeb3928f4b1f

81103428 as geometric shapes

Circle

Radius = n
Diameter 162206856
Circumference 509587867.1715
Area 2.0664661447409E+16

Sphere

Radius = n
Volume 2.2346331757924E+24
Surface area 8.2658645789634E+16
Circumference 509587867.1715

Square

Length = n
Perimeter 324413712
Area 6577766033351184
Diagonal 114697567.83255

Cube

Length = n
Surface area 39466596200107104
Volume 5.3347937388674E+23
Space diagonal 140475257.964

Equilateral Triangle

Length = n
Perimeter 243310284
Area 2.8482562425163E+15
Altitude 70237628.982002

Triangular Pyramid

Length = n
Surface area 2.8482562425163E+15
Volume 6.2871147149745E+22
Height 38232522.61085