21506780 (number)

21506780 is an even 8-digits composite number following 21506779 and preceding 21506781. In scientific notation, it is written as 2.1506780 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors. There are 8602704 positive integers (up to 21506780) that are relatively prime to 21506780.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred six thousand seven hundred eighty

Notation

Scientific notation 2.1506780 × 10^7
Engineering notation 2.1506780 × 10^6

Prime Factorization of 21506780

Prime Factorization 2 × 2 × 5 × 1075339

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10753390
Product of the distinct prime numbers

The prime factorization of 21506780 is 2 × 2 × 5 × 1075339. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 4, 61, 49, 567, 673, 7300, 9663, 14192, 88104, 516083, 734648, 3005619, 7416323, 57201997, 17842301, 639059863, 403042541, 1609909125, 8877016295

Basic calculations (n = 21506780)

Multiplication

n×y
n×2 43013560
n×3 64520340
n×4 86027120
n×5 107533900

Division

n÷y
n÷2 10753390
n÷3 7168926.6666667
n÷3 5376695
n÷5 4301356

Exponentiation

ny
n2 462541585968400
n3 9.9477801302735E+21
n4 2.1394471875016E+29
n5 4.6012619983216E+36

Nth Root

y√n
2√n 4637.5402963209
3√n 278.09411440054
4√n 68.099488223634
5√n 29.276225153964

Divisors of 21506780

1, 2, 4, 5, 10, 20, 1075339, 2150678, 4301356, 5376695, 10753390, 21506780

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 -21506779
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 21506780 can be divided by 12 positive divisors. The sum of these divisors (counting 21506780) is 1, the average is 0.083333333333333.

Base conversion 21506780

Base System Value
2 Binary 1010010000010101011011100
3 Ternary 1111110122202102
4 Quaternary 1102002223130
5 Quinary 21001204110
6 Senary 2044544232
8 Octal 122025334
10 Decimal 21506780
12 Duodecimal 7252078
16 Hexadecimal 1482adc
20 Vigesimal 6e86j0
36 Base36 csyqk

Cryptographic Hash Functions

md5 2dc2bc3c387975be3d7e211fc1fdc121
sha1 1d6d507ac9c41e20cd36489d15bc74e2f1301cc2
sha256 66640309b81e2629160ed30edf1a8f3aae0b25264b9c8a6f6cd09ccabc2b4f1f
sha512 a540229a6aa2648365f72d0fa6ead7f111573e63a14d1d1309e42182834503933b43dd61a2bbe432a6ca99b7f0ab28aa5c4e2e8c98d77d5056973d8408553f1d
ripemd-160 4b38b56e6bc54f9cd154ae9ced5e0bead48f621e

21506780 as geometric shapes

Circle

Radius = n
Diameter 43013560
Circumference 135131084.10074
Area 1.4531172484581E+15

Sphere

Radius = n
Volume 4.1669163969058E+22
Surface area 5.8124689938324E+15
Circumference 135131084.10074

Square

Length = n
Perimeter 86027120
Area 462541585968400
Diagonal 30415179.958974

Cube

Length = n
Surface area 2775249515810400
Volume 9.9477801302735E+21
Space diagonal 37250835.667206

Equilateral Triangle

Length = n
Perimeter 64520340
Area 2.0028638187769E+14
Altitude 18625417.833603

Triangular Pyramid

Length = n
Surface area 2.0028638187769E+14
Volume 1.1723571313115E+21
Height 10138393.319658