16818981 (number)

16818981 is an odd 8-digits composite number following 16818980 and preceding 16818982. In scientific notation, it is written as 1.6818981 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 10869120 positive integers (up to 16818981) that are relatively prime to 16818981.

Interesting facts

Basic properties

Name

Name sixteen million eight hundred eighteen thousand nine hundred eighty-one

Notation

Scientific notation 1.6818981 × 10^7
Engineering notation 1.6818981 × 10^6

Prime Factorization of 16818981

Prime Factorization 3 × 61 × 73 × 1259

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 16818981
Product of the distinct prime numbers

The prime factorization of 16818981 is 3 × 61 × 73 × 1259. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 3, 33, 76, 878, 298, 3437, 7163, 15845, 2538, 900055, 195856, 271070, 5401204, 60340840, 93150494, 789888403, 362839001, 9191265698, 1060398994

Basic calculations (n = 16818981)

Multiplication

n×y
n×2 33637962
n×3 50456943
n×4 67275924
n×5 84094905

Division

n÷y
n÷2 8409490.5
n÷3 5606327
n÷3 4204745.25
n÷5 3363796.2

Exponentiation

ny
n2 282878121878361
n3 4.7577217571878E+21
n4 8.0020031837429E+28
n5 1.3458553950931E+36

Nth Root

y√n
2√n 4101.0950976538
3√n 256.21225174673
4√n 64.039793079411
5√n 27.871473919202

Divisors of 16818981

1, 3, 61, 73, 183, 219, 1259, 3777, 4453, 13359, 76799, 91907, 230397, 275721, 5606327, 16818981

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 -16818980
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 16818981 can be divided by 16 positive divisors. The sum of these divisors (counting 16818981) is 1, the average is 0.0625.

Base conversion 16818981

Base System Value
2 Binary 1000000001010001100100101
3 Ternary 1011122111022020
4 Quaternary 1000022030211
5 Quinary 13301201411
6 Senary 1400253353
8 Octal 100121445
10 Decimal 16818981
12 Duodecimal 5771259
16 Hexadecimal 100a325
20 Vigesimal 552791
36 Base36 a0hlx

Cryptographic Hash Functions

md5 42967198d85e96e0ac5dbd9802701a81
sha1 55660ffd6cd9721a3f8dad26893fc3f71a9e9abd
sha256 55f1fd21cbab3187b0665913c2974ad5c048dd76f6bbf80b0eda1c6c0b6e2134
sha512 74d1e1f8c7b2a611b5d0efc447d11e93d389c4e2b8d5af6d2a7cf4c703ecf857c465c98d8e4ed1995a332f0e14ce5f8c3fe6e79a53a421d30b07e9ac0ab6dbe1
ripemd-160 3776929068c967b963a72e1bc2c1b9ae784fa603

16818981 as geometric shapes

Circle

Radius = n
Diameter 33637962
Circumference 105676774.30093
Area 8.8868782955434E+14

Sphere

Radius = n
Volume 1.9929098293608E+22
Surface area 3.5547513182173E+15
Circumference 105676774.30093

Square

Length = n
Perimeter 67275924
Area 282878121878361
Diagonal 23785631.035495

Cube

Length = n
Surface area 1697268731270166
Volume 4.7577217571878E+21
Space diagonal 29131329.623536

Equilateral Triangle

Length = n
Perimeter 50456943
Area 1.2248981986075E+14
Altitude 14565664.811768

Triangular Pyramid

Length = n
Surface area 1.2248981986075E+14
Volume 5.6070288625105E+20
Height 7928543.6784985