18821481 (number)

18821481 is an odd 8-digits composite number following 18821480 and preceding 18821482. In scientific notation, it is written as 1.8821481 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 10713744 positive integers (up to 18821481) that are relatively prime to 18821481.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8821481 × 10^7
Engineering notation 1.8821481 × 10^6

Prime Factorization of 18821481

Prime Factorization 3 × 7 × 283 × 3167

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18821481
Product of the distinct prime numbers

The prime factorization of 18821481 is 3 × 7 × 283 × 3167. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 4, 28, 26, 225, 248, 6032, 8296, 12657, 6291, 786043, 451476, 2208631, 5915509, 37201376, 25466421, 782284727, 584471388, 3150309354, 5524621181

Basic calculations (n = 18821481)

Multiplication

n×y
n×2 37642962
n×3 56464443
n×4 75285924
n×5 94107405

Division

n÷y
n÷2 9410740.5
n÷3 6273827
n÷3 4705370.25
n÷5 3764296.2

Exponentiation

ny
n2 354248147033361
n3 6.6674747686736E+21
n4 1.2549174967657E+29
n5 2.3619405821943E+36

Nth Root

y√n
2√n 4338.3730821588
3√n 266.00181373252
4√n 65.866327377187
5√n 28.505637547038

Divisors of 18821481

1, 3, 7, 21, 283, 849, 1981, 3167, 5943, 9501, 22169, 66507, 896261, 2688783, 6273827, 18821481

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18821480
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18821481 can be divided by 16 positive divisors. The sum of these divisors (counting 18821481) is 1, the average is 0.0625.

Base conversion 18821481

Base System Value
2 Binary 1000111110011000101101001
3 Ternary 1022102020012220
4 Quaternary 1013303011221
5 Quinary 14304241411
6 Senary 1511224253
8 Octal 107630551
10 Decimal 18821481
12 Duodecimal 6378089
16 Hexadecimal 11f3169
20 Vigesimal 5hcde1
36 Base36 b7eqx

Cryptographic Hash Functions

md5 99bc8f4ddd7e3191d90840d1b6a5bf1b
sha1 a4b0227e0b71c18b68b22ae42dbc8e597fa297dc
sha256 2b080efc2ae53662a743360f5526de62770b49770f330771487e6174a1264a1f
sha512 ae681d99a8b2cb12b5a9a09e90477f21f0621a3b498153babc94220541daf39fcdc9a1dd5e932da68fe4606d63a5af5c2e73d1dda238d1db0eb01f3f117ccf67
ripemd-160 aa853b3f00c5bede2a24696eb3cbaa4df14a8823

18821481 as geometric shapes

Circle

Radius = n
Diameter 37642962
Circumference 118258852.87856
Area 1.1129033762678E+15

Sphere

Radius = n
Volume 2.792865300168E+22
Surface area 4.4516135050712E+15
Circumference 118258852.87856

Square

Length = n
Perimeter 75285924
Area 354248147033361
Diagonal 26617593.694148

Cube

Length = n
Surface area 2125488882200166
Volume 6.6674747686736E+21
Space diagonal 32599761.365692

Equilateral Triangle

Length = n
Perimeter 56464443
Area 1.5339394728723E+14
Altitude 16299880.682846

Triangular Pyramid

Length = n
Surface area 1.5339394728723E+14
Volume 7.8576943705322E+20
Height 8872531.2313825