21490780 (number)

21490780 is an even 8-digits composite number following 21490779 and preceding 21490781. In scientific notation, it is written as 2.1490780 × 10^7. The sum of its digits is 31. It has a total of 5 prime factors and 24 positive divisors. There are 8510400 positive integers (up to 21490780) that are relatively prime to 21490780.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1490780 × 10^7
Engineering notation 2.1490780 × 10^6

Prime Factorization of 21490780

Prime Factorization 2 × 2 × 5 × 101 × 10639

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10745390
Product of the distinct prime numbers

The prime factorization of 21490780 is 2 × 2 × 5 × 101 × 10639. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 1, 32, 66, 939, 520, 3381, 5924, 57465, 5965, 604149, 919227, 1826297, 9175305, 64690335, 92156957, 629695525, 371594678, 4744194776, 6775837195

Basic calculations (n = 21490780)

Multiplication

n×y
n×2 42981560
n×3 64472340
n×4 85963120
n×5 107453900

Division

n÷y
n÷2 10745390
n÷3 7163593.3333333
n÷3 5372695
n÷5 4298156

Exponentiation

ny
n2 461853625008400
n3 9.925594647258E+21
n4 2.133087709334E+29
n5 4.5841718682001E+36

Nth Root

y√n
2√n 4635.8149229666
3√n 278.02513445264
4√n 68.086819010486
5√n 29.271867839133

Divisors of 21490780

1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 10639, 21278, 42556, 53195, 106390, 212780, 1074539, 2149078, 4298156, 5372695, 10745390, 21490780

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 -21490779
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 21490780 can be divided by 24 positive divisors. The sum of these divisors (counting 21490780) is 1, the average is 0.041666666666667.

Base conversion 21490780

Base System Value
2 Binary 1010001111110110001011100
3 Ternary 1111102211210211
4 Quaternary 1101332301130
5 Quinary 21000201110
6 Senary 2044342204
8 Octal 121766134
10 Decimal 21490780
12 Duodecimal 7244964
16 Hexadecimal 147ec5c
20 Vigesimal 6e66j0
36 Base36 csme4

Cryptographic Hash Functions

md5 fb68292daa6de9f8719693dc2241b192
sha1 c5f2d259c204a2c3ab938b514d5c8d40d8edbdbd
sha256 aaeb5b28d3db9f9a32218e8c7cef8b70efc912a0b8afc91711ea49ab7ef24f66
sha512 f54ffa9830c85b43989e10430b64019c181053c7bfc031eb37ff633162b5f705a7d634aa7f93717386d32e7950440ea54041d6f27bd900906f3dc20b16f6b49b
ripemd-160 5c35b55e46130f05dbef8fd5c78e69206bba7172

21490780 as geometric shapes

Circle

Radius = n
Diameter 42981560
Circumference 135030553.13583
Area 1.4509559553602E+15

Sphere

Radius = n
Volume 4.1576233635115E+22
Surface area 5.8038238214408E+15
Circumference 135030553.13583

Square

Length = n
Perimeter 85963120
Area 461853625008400
Diagonal 30392552.541976

Cube

Length = n
Surface area 2771121750050400
Volume 9.925594647258E+21
Space diagonal 37223122.854285

Equilateral Triangle

Length = n
Perimeter 64472340
Area 1.999884860436E+14
Altitude 18611561.427143

Triangular Pyramid

Length = n
Surface area 1.999884860436E+14
Volume 1.1697425470642E+21
Height 10130850.847325