21787242 (number)

21787242 is an even 8-digits composite number following 21787241 and preceding 21787243. In scientific notation, it is written as 2.1787242 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 7254272 positive integers (up to 21787242) that are relatively prime to 21787242.

Interesting facts

Basic properties

Name

Name twenty-one million seven hundred eighty-seven thousand two hundred forty-two

Notation

Scientific notation 2.1787242 × 10^7
Engineering notation 2.1787242 × 10^6

Prime Factorization of 21787242

Prime Factorization 2 × 3 × 1319 × 2753

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21787242
Product of the distinct prime numbers

The prime factorization of 21787242 is 2 × 3 × 1319 × 2753. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 4, 29, 71, 927, 787, 4876, 9878, 51104, 95552, 908261, 301650, 7890371, 1529126, 74429645, 28216053, 586079303, 575279960, 8254777755, 1203883942

Basic calculations (n = 21787242)

Multiplication

n×y
n×2 43574484
n×3 65361726
n×4 87148968
n×5 108936210

Division

n÷y
n÷2 10893621
n÷3 7262414
n÷3 5446810.5
n÷5 4357448.4

Exponentiation

ny
n2 474683913966564
n3 1.0342053307097E+22
n4 2.2532481817862E+29
n5 4.9092063422635E+36

Nth Root

y√n
2√n 4667.6805803311
3√n 279.2977384458
4√n 68.320425791494
5√n 29.352186044268

Divisors of 21787242

1, 2, 3, 6, 1319, 2638, 2753, 3957, 5506, 7914, 8259, 16518, 3631207, 7262414, 10893621, 21787242

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21787241
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21787242 can be divided by 16 positive divisors. The sum of these divisors (counting 21787242) is 1, the average is 0.0625.

Base conversion 21787242

Base System Value
2 Binary 1010011000111001001101010
3 Ternary 1111222220110220
4 Quaternary 1103013021222
5 Quinary 21034142432
6 Senary 2054550510
8 Octal 123071152
10 Decimal 21787242
12 Duodecimal 7368436
16 Hexadecimal 14c726a
20 Vigesimal 6g3822
36 Base36 cyz56

Cryptographic Hash Functions

md5 36d82c12c614f3fceee60aebf83e8cde
sha1 06dd23f763bce3d8a3cd44213dc96e7db4b73401
sha256 989e5414131ad6495decf2f05e1ff7fb339fa588fa9e2e77a32186e4ea2881f1
sha512 a20fc6d5a626d5defc80d67c5449bc99a7a70c46a026f06ad91016aa61d74ddf19b3ba64f7dc00bde244566fe20e3580baaaa11cd39f805cd7ce95f65d2cdd7a
ripemd-160 9fd3b08d472d5c3dd93f7fb70b68547aadd610e8

21787242 as geometric shapes

Circle

Radius = n
Diameter 43574484
Circumference 136893278.81837
Area 1.4912634968946E+15

Sphere

Radius = n
Volume 4.3320691590145E+22
Surface area 5.9650539875784E+15
Circumference 136893278.81837

Square

Length = n
Perimeter 87148968
Area 474683913966564
Diagonal 30811813.123105

Cube

Length = n
Surface area 2848103483799384
Volume 1.0342053307097E+22
Space diagonal 37736610.100799

Equilateral Triangle

Length = n
Perimeter 65361726
Area 2.0554416413144E+14
Altitude 18868305.050399

Triangular Pyramid

Length = n
Surface area 2.0554416413144E+14
Volume 1.2188226708068E+21
Height 10270604.374368