16661381 (number)

16661381 is an odd 8-digits composite number following 16661380 and preceding 16661382. In scientific notation, it is written as 1.6661381 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 15146700 positive integers (up to 16661381) that are relatively prime to 16661381.

Interesting facts

Basic properties

Name

Name sixteen million six hundred sixty-one thousand three hundred eighty-one

Notation

Scientific notation 1.6661381 × 10^7
Engineering notation 1.6661381 × 10^6

Prime Factorization of 16661381

Prime Factorization 11 × 1514671

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 16661381
Product of the distinct prime numbers

The prime factorization of 16661381 is 11 × 1514671. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 16661381)

Multiplication

n×y
n×2 33322762
n×3 49984143
n×4 66645524
n×5 83306905

Division

n÷y
n÷2 8330690.5
n÷3 5553793.6666667
n÷3 4165345.25
n÷5 3332276.2

Exponentiation

ny
n2 277601616827161
n3 4.6252263041733E+21
n4 7.7062657665054E+28
n5 1.28397030023E+36

Nth Root

y√n
2√n 4081.8354939904
3√n 255.40947156795
4√n 63.889243961644
5√n 27.819043853872

Divisors of 16661381

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -16661380
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 16661381 can be divided by 4 positive divisors. The sum of these divisors (counting 16661381) is 1, the average is 0.25.

Base conversion 16661381

Base System Value
2 Binary 111111100011101110000101
3 Ternary 1011100111010012
4 Quaternary 333203232011
5 Quinary 13231131011
6 Senary 1353040005
8 Octal 77435605
10 Decimal 16661381
12 Duodecimal 56b6005
16 Hexadecimal fe3b85
20 Vigesimal 542d91
36 Base36 9x405

Cryptographic Hash Functions

md5 8524418ea01ab804d805b84829c9972e
sha1 0d8c94a0e000c05a911bdfc8f583c36313f5c195
sha256 fdb61b4dc22766d8276dd575fd5033d6af08887c1f03c5cf03363cca981cd765
sha512 87eb60976adade451165f6e353a7072fde9d14a7c1797807d81cbee782d3a4f61bd867faa625559230f8befce7169b5cc7a2a8d7bc093f0495510852e6147f3c
ripemd-160 195ec38ba9bdd903002d89917fea69eb0e8a1e65

16661381 as geometric shapes

Circle

Radius = n
Diameter 33322762
Circumference 104686544.29652
Area 8.7211120004886E+14

Sphere

Radius = n
Volume 1.9374102637842E+22
Surface area 3.4884448001954E+15
Circumference 104686544.29652

Square

Length = n
Perimeter 66645524
Area 277601616827161
Diagonal 23562750.978065

Cube

Length = n
Surface area 1665609700962966
Volume 4.6252263041733E+21
Space diagonal 28858358.416263

Equilateral Triangle

Length = n
Perimeter 49984143
Area 1.2020502615198E+14
Altitude 14429179.208131

Triangular Pyramid

Length = n
Surface area 1.2020502615198E+14
Volume 5.4508814736723E+20
Height 7854250.3260218