21497780 (number)

21497780 is an even 8-digits composite number following 21497779 and preceding 21497781. In scientific notation, it is written as 2.1497780 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors. There are 8599104 positive integers (up to 21497780) that are relatively prime to 21497780.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-seven thousand seven hundred eighty

Notation

Scientific notation 2.1497780 × 10^7
Engineering notation 2.1497780 × 10^6

Prime Factorization of 21497780

Prime Factorization 2 × 2 × 5 × 1074889

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10748890
Product of the distinct prime numbers

The prime factorization of 21497780 is 2 × 2 × 5 × 1074889. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 6, 48, 9, 125, 800, 1206, 8002, 77501, 96645, 850989, 342457, 2543837, 3148803, 88210805, 78643165, 116094275, 393707000, 1683232398, 7499412670

Basic calculations (n = 21497780)

Multiplication

n×y
n×2 42995560
n×3 64493340
n×4 85991120
n×5 107488900

Division

n÷y
n÷2 10748890
n÷3 7165926.6666667
n÷3 5374445
n÷5 4299556

Exponentiation

ny
n2 462154544928400
n3 9.9352967328709E+21
n4 2.1358682339798E+29
n5 4.5916425403086E+36

Nth Root

y√n
2√n 4636.5698528115
3√n 278.05531739118
4√n 68.092362661399
5√n 29.273774483597

Divisors of 21497780

1, 2, 4, 5, 10, 20, 1074889, 2149778, 4299556, 5374445, 10748890, 21497780

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 -21497779
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 21497780 can be divided by 12 positive divisors. The sum of these divisors (counting 21497780) is 1, the average is 0.083333333333333.

Base conversion 21497780

Base System Value
2 Binary 1010010000000011110110100
3 Ternary 1111110012102002
4 Quaternary 1102000132310
5 Quinary 21000412110
6 Senary 2044434432
8 Octal 122003664
10 Decimal 21497780
12 Duodecimal 7248a18
16 Hexadecimal 14807b4
20 Vigesimal 6e7490
36 Base36 csrsk

Cryptographic Hash Functions

md5 943be0ddc1cb0a798e6723cd849c62ef
sha1 dabc35ccbcc65157541ca06f807d2693d4667dbe
sha256 8e2837541deaff649df2cc4386c9f0fdfe2982c711aa03ddc4e245d7af8b8c7f
sha512 e36e8ae07aaa800f91cdc702d1e3c7cfeb0578a9661c93184f4c400e3f7cfb7ef9e2554c0fe4b29ed9534b61a1d06c97d8316376f973d284e55952cc137b35c0
ripemd-160 b3d21615ab301172877b5bc8a04572eb71642044

21497780 as geometric shapes

Circle

Radius = n
Diameter 42995560
Circumference 135074535.43298
Area 1.4519013231702E+15

Sphere

Radius = n
Volume 4.1616873636296E+22
Surface area 5.8076052926808E+15
Circumference 135074535.43298

Square

Length = n
Perimeter 85991120
Area 462154544928400
Diagonal 30402452.036913

Cube

Length = n
Surface area 2772927269570400
Volume 9.9352967328709E+21
Space diagonal 37235247.209938

Equilateral Triangle

Length = n
Perimeter 64493340
Area 2.0011878819122E+14
Altitude 18617623.604969

Triangular Pyramid

Length = n
Surface area 2.0011878819122E+14
Volume 1.1708859488189E+21
Height 10134150.678971