16661821 (number)

16661821 is an odd 8-digits composite number following 16661820 and preceding 16661822. In scientific notation, it is written as 1.6661821 × 10^7. The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors. There are 14486120 positive integers (up to 16661821) that are relatively prime to 16661821.

Interesting facts

Basic properties

Name

Name sixteen million six hundred sixty-one thousand eight hundred twenty-one

Notation

Scientific notation 1.6661821 × 10^7
Engineering notation 1.6661821 × 10^6

Prime Factorization of 16661821

Prime Factorization 11 × 11 × 23 × 5987

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1514711
Product of the distinct prime numbers

The prime factorization of 16661821 is 11 × 11 × 23 × 5987. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 4, 22, 78, 29, 382, 5804, 7189, 36631, 37407, 829517, 123758, 5399309, 8323202, 82449812, 1193186, 350577604, 284815507, 6980719155, 447005536

Basic calculations (n = 16661821)

Multiplication

n×y
n×2 33323642
n×3 49985463
n×4 66647284
n×5 83309105

Division

n÷y
n÷2 8330910.5
n÷3 5553940.3333333
n÷3 4165455.25
n÷5 3332364.2

Exponentiation

ny
n2 277616279036041
n3 4.6255927479846E+21
n4 7.7070798385817E+28
n5 1.2841398470316E+36

Nth Root

y√n
2√n 4081.8893909561
3√n 255.41171986454
4√n 63.889665760247
5√n 27.819190783469

Divisors of 16661821

1, 11, 23, 121, 253, 2783, 5987, 65857, 137701, 724427, 1514711, 16661821

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 -16661820
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 16661821 can be divided by 12 positive divisors. The sum of these divisors (counting 16661821) is 1, the average is 0.083333333333333.

Base conversion 16661821

Base System Value
2 Binary 111111100011110100111101
3 Ternary 1011100111201111
4 Quaternary 333203310331
5 Quinary 13231134241
6 Senary 1353042021
8 Octal 77436475
10 Decimal 16661821
12 Duodecimal 56b6311
16 Hexadecimal fe3d3d
20 Vigesimal 542eb1
36 Base36 9x4cd

Cryptographic Hash Functions

md5 7353b037268853e8bb1a58cf8be4f95c
sha1 dcb19a8c56127220f19127f11477ba8fbbd6222a
sha256 b635f4ab8ff11ece6e0aef9c7648cd2c830b007a4a31313989de100189eed5b7
sha512 7981c77ace967dca45c8297ff85709b0097231cbebd78c00e299b4452329936d5bbe2cc37cec30aaab1939b10d5fb0a537acf522a2dde128750f9829128bd6d7
ripemd-160 eb6e3116a7ccd7c81fbfd57d09b7cb18897f7922

16661821 as geometric shapes

Circle

Radius = n
Diameter 33323642
Circumference 104689308.89806
Area 8.7215726273656E+14

Sphere

Radius = n
Volume 1.9375637594089E+22
Surface area 3.4886290509462E+15
Circumference 104689308.89806

Square

Length = n
Perimeter 66647284
Area 277616279036041
Diagonal 23563373.232033

Cube

Length = n
Surface area 1665697674216246
Volume 4.6255927479846E+21
Space diagonal 28859120.518618

Equilateral Triangle

Length = n
Perimeter 49985463
Area 1.2021137507466E+14
Altitude 14429560.259309

Triangular Pyramid

Length = n
Surface area 1.2021137507466E+14
Volume 5.4513133318453E+20
Height 7854457.7440109