21787642 (number)

21787642 is an even 8-digits composite number following 21787641 and preceding 21787643. In scientific notation, it is written as 2.1787642 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors. There are 9370368 positive integers (up to 21787642) that are relatively prime to 21787642.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1787642 × 10^7
Engineering notation 2.1787642 × 10^6

Prime Factorization of 21787642

Prime Factorization 2 × 19 × 493 × 1163

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21787642
Product of the distinct prime numbers

The prime factorization of 21787642 is 2 × 19 × 493 × 1163. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 8, 50, 92, 692, 876, 8451, 7662, 34856, 75106, 804412, 979418, 6786237, 6412819, 371412, 79919693, 446071723, 181109008, 854220470, 2122836892

Basic calculations (n = 21787642)

Multiplication

n×y
n×2 43575284
n×3 65362926
n×4 87150568
n×5 108938210

Division

n÷y
n÷2 10893821
n÷3 7262547.3333333
n÷3 5446910.5
n÷5 4357528.4

Exponentiation

ny
n2 474701343920164
n3 1.0342622938251E+22
n4 2.2534136591961E+29
n5 4.9096570084475E+36

Nth Root

y√n
2√n 4667.7234279679
3√n 279.29944767868
4√n 68.3207393693
5√n 29.352293820995

Divisors of 21787642

1, 2, 19, 38, 493, 986, 1163, 2326, 9367, 18734, 22097, 44194, 573359, 1146718, 10893821, 21787642

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 -21787641
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 21787642 can be divided by 16 positive divisors. The sum of these divisors (counting 21787642) is 1, the average is 0.0625.

Base conversion 21787642

Base System Value
2 Binary 1010011000111001111111010
3 Ternary 1111222221000201
4 Quaternary 1103013033322
5 Quinary 21034201032
6 Senary 2054552414
8 Octal 123071772
10 Decimal 21787642
12 Duodecimal 736870a
16 Hexadecimal 14c73fa
20 Vigesimal 6g3922
36 Base36 cyzga

Cryptographic Hash Functions

md5 a6b5fe02e1c9e728c396721aba4b920d
sha1 0d5b52aec79cba7b681f4be879ab83dc51237344
sha256 ba074d5b6f5109c61422dfd534d564a2cd9ece0a7c829e82c536448fdd3ce64b
sha512 bcd15b98dd8d55c2f3269701a2df9f47dc1fa25c9cb9b343f83a112bde1b14225db1e38b0ce9ca0e2e2d092816985f4b65d448a33a537247a6d6b376b0615a75
ripemd-160 f2a637f9517a68479d84ad1c4792c446c303b57d

21787642 as geometric shapes

Circle

Radius = n
Diameter 43575284
Circumference 136895792.09249
Area 1.4913182547088E+15

Sphere

Radius = n
Volume 4.3323077655547E+22
Surface area 5.9652730188352E+15
Circumference 136895792.09249

Square

Length = n
Perimeter 87150568
Area 474701343920164
Diagonal 30812378.80853

Cube

Length = n
Surface area 2848208063520984
Volume 1.0342622938251E+22
Space diagonal 37737302.921122

Equilateral Triangle

Length = n
Perimeter 65362926
Area 2.0555171152274E+14
Altitude 18868651.460561

Triangular Pyramid

Length = n
Surface area 2.0555171152274E+14
Volume 1.2188898024822E+21
Height 10270792.936177