21685220 (number)

21685220 is an even 8-digits composite number following 21685219 and preceding 21685221. In scientific notation, it is written as 2.1685220 × 10^7. The sum of its digits is 26. It has a total of 5 prime factors and 24 positive divisors. There are 8544096 positive integers (up to 21685220) that are relatively prime to 21685220.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1685220 × 10^7
Engineering notation 2.1685220 × 10^6

Prime Factorization of 21685220

Prime Factorization 2 × 2 × 5 × 67 × 16183

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10842610
Product of the distinct prime numbers

The prime factorization of 21685220 is 2 × 2 × 5 × 67 × 16183. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 10, 52, 67, 125, 242, 5253, 8071, 31738, 64839, 117896, 909426, 7463060, 6037519, 52241834, 42846353, 389582720, 349741298, 2810539752, 5988484076

Basic calculations (n = 21685220)

Multiplication

n×y
n×2 43370440
n×3 65055660
n×4 86740880
n×5 108426100

Division

n÷y
n÷2 10842610
n÷3 7228406.6666667
n÷3 5421305
n÷5 4337044

Exponentiation

ny
n2 470248766448400
n3 1.0197447955162E+22
n4 2.2113390234624E+29
n5 4.7953373218368E+36

Nth Root

y√n
2√n 4656.7392024892
3√n 278.86110513936
4√n 68.240304824123
5√n 29.324645215183

Divisors of 21685220

1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 16183, 32366, 64732, 80915, 161830, 323660, 1084261, 2168522, 4337044, 5421305, 10842610, 21685220

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21685219
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21685220 can be divided by 24 positive divisors. The sum of these divisors (counting 21685220) is 1, the average is 0.041666666666667.

Base conversion 21685220

Base System Value
2 Binary 1010010101110001111100100
3 Ternary 1111210201112022
4 Quaternary 1102232033210
5 Quinary 21022411340
6 Senary 2052442312
8 Octal 122561744
10 Decimal 21685220
12 Duodecimal 7319398
16 Hexadecimal 14ae3e4
20 Vigesimal 6fad10
36 Base36 cwsf8

Cryptographic Hash Functions

md5 bb34d01408e69bfab3bd8a99ce17981b
sha1 848dd81c0358a4a11ebbedde87617e95525426cf
sha256 040776130b52826071cb7688d61581c9efa92b3367bd2127a6094dfa8c255bca
sha512 b058ecc4fbbb90b69c222077ea8ff27cf8eaccd21e4400abeea40eb7c242883a15a96933e04f61bb6ed271df22295049bcd941e12b7b9be58d3ef7dfbb44f732
ripemd-160 46b3cfcc0f01a89d1e08823aab62e53ea07db1f5

21685220 as geometric shapes

Circle

Radius = n
Diameter 43370440
Circumference 136252255.68696
Area 1.477330070034E+15

Sphere

Radius = n
Volume 4.2714970108402E+22
Surface area 5.9093202801358E+15
Circumference 136252255.68696

Square

Length = n
Perimeter 86740880
Area 470248766448400
Diagonal 30667532.227044

Cube

Length = n
Surface area 2821492598690400
Volume 1.0197447955162E+22
Space diagonal 37559902.813309

Equilateral Triangle

Length = n
Perimeter 65055660
Area 2.036236889213E+14
Altitude 18779951.406654

Triangular Pyramid

Length = n
Surface area 2.036236889213E+14
Volume 1.2017807666487E+21
Height 10222510.742348