20921680 (number)

20921680 is an even 8-digits composite number following 20921679 and preceding 20921681. In scientific notation, it is written as 2.0921680 × 10^7. The sum of its digits is 28. It has a total of 7 prime factors and 40 positive divisors. There are 7724544 positive integers (up to 20921680) that are relatively prime to 20921680.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0921680 × 10^7
Engineering notation 2.0921680 × 10^6

Prime Factorization of 20921680

Prime Factorization 2 × 2 × 2 × 2 × 5 × 13 × 20117

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 2615210
Product of the distinct prime numbers

The prime factorization of 20921680 is 2 × 2 × 2 × 2 × 5 × 13 × 20117. Since it has a total of 7 prime factors.

Most popular turbo-numbers

6, 5, 32, 75, 202, 402, 8365, 7398, 51256, 4171, 575899, 147447, 3520644, 6552633, 67034432, 31010788, 272855310, 799616095, 9900981761, 732378404

Basic calculations (n = 20921680)

Multiplication

n×y
n×2 41843360
n×3 62765040
n×4 83686720
n×5 104608400

Division

n÷y
n÷2 10460840
n÷3 6973893.3333333
n÷3 5230420
n÷5 4184336

Exponentiation

ny
n2 437716694022400
n3 9.1577686029946E+21
n4 1.915959042259E+29
n5 4.0085081975249E+36

Nth Root

y√n
2√n 4574.0222999019
3√n 275.54900791857
4√n 67.63151853908
5√n 29.115168712705

Divisors of 20921680

1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 20117, 40234, 80468, 100585, 160936, 201170, 261521, 321872, 402340, 523042, 804680, 1046084, 1307605, 1609360, 2092168, 2615210, 4184336, 5230420, 10460840, 20921680

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20921679
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20921680 can be divided by 40 positive divisors. The sum of these divisors (counting 20921680) is 1, the average is 0.025.

Base conversion 20921680

Base System Value
2 Binary 1001111110011110101010000
3 Ternary 1110100221011001
4 Quaternary 1033303311100
5 Quinary 20323443210
6 Senary 2024231344
8 Octal 117636520
10 Decimal 20921680
12 Duodecimal 700b554
16 Hexadecimal 13f3d50
20 Vigesimal 6af440
36 Base36 cgf9s

Cryptographic Hash Functions

md5 d7659281f40f1ad7e366e59517ef586a
sha1 cbc2891d869e87aedde1506de8cf619e46dda0ce
sha256 ed87eed692ca862faf242409df10731b7c822ebb5e4a89b5851f1b178ad3dc9f
sha512 3da4023823089da25204bf5764192f97efae09ab0580999515fb691e6e5c2b02f3b1e074dd2f88121cba1e2e1585287c4b9476ce30e12ab59ea95c0a7274af76
ripemd-160 c5103a45a82f4b1e3c9d8d9c0a07c38c9f2c1b9d

20921680 as geometric shapes

Circle

Radius = n
Diameter 41843360
Circumference 131454792.37751
Area 1.3751275502944E+15

Sphere

Radius = n
Volume 3.8359971421924E+22
Surface area 5.5005102011775E+15
Circumference 131454792.37751

Square

Length = n
Perimeter 83686720
Area 437716694022400
Diagonal 29587723.60363

Cube

Length = n
Surface area 2626300164134400
Volume 9.1577686029946E+21
Space diagonal 36237412.739698

Equilateral Triangle

Length = n
Perimeter 62765040
Area 1.8953688834197E+14
Altitude 18118706.369849

Triangular Pyramid

Length = n
Surface area 1.8953688834197E+14
Volume 1.0792533799525E+21
Height 9862574.5345433