21471728 (number)

21471728 is an even 8-digits composite number following 21471727 and preceding 21471729. In scientific notation, it is written as 2.1471728 × 10^7. The sum of its digits is 32. It has a total of 5 prime factors and 10 positive divisors. There are 10735856 positive integers (up to 21471728) that are relatively prime to 21471728.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred seventy-one thousand seven hundred twenty-eight

Notation

Scientific notation 2.1471728 × 10^7
Engineering notation 2.1471728 × 10^6

Prime Factorization of 21471728

Prime Factorization 2 × 2 × 2 × 2 × 1341983

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 2683966
Product of the distinct prime numbers

The prime factorization of 21471728 is 2 × 2 × 2 × 2 × 1341983. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 1, 90, 63, 572, 280, 7521, 6655, 69734, 81103, 705836, 634266, 3729854, 5913394, 76640895, 79479716, 437450827, 166908477, 8702467477, 3697936259

Basic calculations (n = 21471728)

Multiplication

n×y
n×2 42943456
n×3 64415184
n×4 85886912
n×5 107358640

Division

n÷y
n÷2 10735864
n÷3 7157242.6666667
n÷3 5367932
n÷5 4294345.6

Exponentiation

ny
n2 461035103305984
n3 9.899220336638E+21
n4 2.1255336648036E+29
n5 4.5638880705506E+36

Nth Root

y√n
2√n 4633.759596699
3√n 277.94295190874
4√n 68.071723914552
5√n 29.26667598019

Divisors of 21471728

1, 2, 4, 8, 16, 1341983, 2683966, 5367932, 10735864, 21471728

10 divisors

τ Total Divisors 10
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21471727
Sum of the proper positive divisors of n
A Arithmetic Mean 0.1
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 10
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21471728 can be divided by 10 positive divisors. The sum of these divisors (counting 21471728) is 1, the average is 0.1.

Base conversion 21471728

Base System Value
2 Binary 1010001111010000111110000
3 Ternary 1111101212200012
4 Quaternary 1101322013300
5 Quinary 20444043403
6 Senary 2044114052
8 Octal 121720760
10 Decimal 21471728
12 Duodecimal 7235928
16 Hexadecimal 147a1f0
20 Vigesimal 6e3j68
36 Base36 cs7ow

Cryptographic Hash Functions

md5 f61057ccbf5395735efc513db7c8e571
sha1 142dd5425215e7bbae7bec500293f872ae2e83e8
sha256 923532679f0834c9e12143211eb74e0c812b76f571adb57f0ebbf5833e1cafea
sha512 6b55b6a3104f624d133da5f164328fbf5e2003bc89b08debb84964bd7fbd6d9597343ba7b0f622991fe7145595830b5929ee60d2a15332238f4877a381e44245
ripemd-160 45271975919be5171eb48acda71b03a995ea355a

21471728 as geometric shapes

Circle

Radius = n
Diameter 42943456
Circumference 134910845.88936
Area 1.4483844935931E+15

Sphere

Radius = n
Volume 4.1465757181131E+22
Surface area 5.7935379743724E+15
Circumference 134910845.88936

Square

Length = n
Perimeter 85886912
Area 461035103305984
Diagonal 30365608.945186

Cube

Length = n
Surface area 2766210619835904
Volume 9.899220336638E+21
Space diagonal 37190123.822299

Equilateral Triangle

Length = n
Perimeter 64415184
Area 1.9963405574968E+14
Altitude 18595061.91115

Triangular Pyramid

Length = n
Surface area 1.9963405574968E+14
Volume 1.1666343047494E+21
Height 10121869.648395