20721680 (number)

20721680 is an even 8-digits composite number following 20721679 and preceding 20721681. In scientific notation, it is written as 2.0721680 × 10^7. The sum of its digits is 26. It has a total of 6 prime factors and 20 positive divisors. There are 7104384 positive integers (up to 20721680) that are relatively prime to 20721680.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0721680 × 10^7
Engineering notation 2.0721680 × 10^6

Prime Factorization of 20721680

Prime Factorization 2 × 2 × 2 × 2 × 35 × 37003

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2590210
Product of the distinct prime numbers

The prime factorization of 20721680 is 2 × 2 × 2 × 2 × 35 × 37003. Since it has a total of 6 prime factors.

Most popular turbo-numbers

6, 10, 38, 16, 393, 158, 8170, 4705, 55471, 8878, 414308, 200476, 72700, 802757, 81286630, 31472323, 899286113, 910636159, 2525414641, 3482442599

Basic calculations (n = 20721680)

Multiplication

n×y
n×2 41443360
n×3 62165040
n×4 82886720
n×5 103608400

Division

n÷y
n÷2 10360840
n÷3 6907226.6666667
n÷3 5180420
n÷5 4144336

Exponentiation

ny
n2 429388022022400
n3 8.8976411881811E+21
n4 1.8437407345631E+29
n5 3.8205405504581E+36

Nth Root

y√n
2√n 4552.1072043615
3√n 274.66816172037
4√n 67.46930564606
5√n 29.05928956398

Divisors of 20721680

1, 2, 4, 8, 16, 35, 70, 140, 280, 560, 37003, 74006, 148012, 296024, 592048, 1295105, 2590210, 5180420, 10360840, 20721680

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20721679
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20721680 can be divided by 20 positive divisors. The sum of these divisors (counting 20721680) is 1, the average is 0.05.

Base conversion 20721680

Base System Value
2 Binary 1001111000011000000010000
3 Ternary 1102222202210122
4 Quaternary 1033003000100
5 Quinary 20301043210
6 Senary 2020045412
8 Octal 117030020
10 Decimal 20721680
12 Duodecimal 6b33868
16 Hexadecimal 13c3010
20 Vigesimal 69a440
36 Base36 cc4y8

Cryptographic Hash Functions

md5 12791c4d4a8419c5ae0b6140d46aa2e6
sha1 20552762ff6a66c6a207d1af05a70405f3a73c7e
sha256 0d4ab2a2a0194521dc3ce436e775e63bea30dafd8bdc4fc13f5c1c7f66d9e07f
sha512 f2d2b84194693e3028b7d01e73a56a599aec0e5cb8ee7cf4f28fdfca2dc88a249cae134ba8c7425b4310bc53157c628ac4cb8d48c9a3b064483cb91b679084ad
ripemd-160 ddd7972db6679fad8627f961d16c0b12d9b0fbe3

20721680 as geometric shapes

Circle

Radius = n
Diameter 41443360
Circumference 130198155.31608
Area 1.348962255525E+15

Sphere

Radius = n
Volume 3.7270352254757E+22
Surface area 5.3958490221001E+15
Circumference 130198155.31608

Square

Length = n
Perimeter 82886720
Area 429388022022400
Diagonal 29304880.891155

Cube

Length = n
Surface area 2576328132134400
Volume 8.8976411881811E+21
Space diagonal 35891002.578184

Equilateral Triangle

Length = n
Perimeter 62165040
Area 1.8593046757608E+14
Altitude 17945501.289092

Triangular Pyramid

Length = n
Surface area 1.8593046757608E+14
Volume 1.0485970701213E+21
Height 9768293.6303851