Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

21379905 (number)

21379905 is an odd 8-digits composite number following 21379904 and preceding 21379906. In scientific notation, it is written as 2.1379905 × 10^7. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 11402592 positive integers (up to 21379905) that are relatively prime to 21379905.

Interesting facts

21379905 has 8 divisors, whose sum is 28506600
The reverse of 21379905 is 50997312
Previous prime number is 9

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9

Name

Name	twenty-one million three hundred seventy-nine thousand nine hundred five

Notation

Scientific notation	2.1379905 × 10^7
Engineering notation	2.1379905 × 10^6

Prime Factorization of 21379905

Prime Factorization 5 × 9 × 475109

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21379905	Product of the distinct prime numbers

The prime factorization of 21379905 is 5 × 9 × 475109. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 1, 36, 76, 208, 824, 8782, 1413, 44773, 97371, 17099, 780803, 1781050, 4716582, 43375050, 36000013, 967320989, 910433737, 7230039714, 4576496296

Basic calculations (n = 21379905)

Multiplication

n×y

n×2	42759810
n×3	64139715
n×4	85519620
n×5	106899525

Division

n÷y

n÷2	10689952.5
n÷3	7126635
n÷3	5344976.25
n÷5	4275981

Exponentiation

n^y

n²	457100337809025
n³	9.7727617978249E+21
n⁴	2.0894071882512E+29
n⁵	4.4671327191129E+36

Nth Root

^y√n

²√n	4623.8409358454
³√n	277.54618174665
⁴√n	67.99883040057
⁵√n	29.241601493734

Divisors of 21379905

1, 5, 9, 45, 475109, 2375545, 4275981, 21379905

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21379904	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21379905 can be divided by 8 positive divisors. The sum of these divisors (counting 21379905) is 1, the average is 0.125.

Base conversion 21379905

Base	System	Value
2	Binary	1010001100011101101000001
3	Ternary	1111020012201100
4	Quaternary	1101203231001
5	Quinary	20433124110
6	Senary	2042125013
8	Octal	121435501
10	Decimal	21379905
12	Duodecimal	71b0769
16	Hexadecimal	1463b41
20	Vigesimal	6dc9f5
36	Base36	cq8u9

Cryptographic Hash Functions

md5	1a32a7bd932dc6df74372aca0bb7629d
sha1	a3ab84b9bf42d152a8d79aa43a554df0c3b3c053
sha256	16adb0008155c2b9a367f1110374eb4fb58576bb87502c760eac42d8a25db539
sha512	6b93d1421b2ed06c25f951f475bacb168b25fedac23db5ffa04ec37fa573a66e3601a42322fac94818a73ebadadf813e49c6ec506bbf01a87181d8518192f7f9
ripemd-160	14908ef405d91e77d6c517c3282cb4eebf7a7f7a

21379905 as geometric shapes

Circle

Radius = n

Diameter	42759810
Circumference	134333904.9649
Area	1.4360230632142E+15

Sphere

Radius = n

Volume	4.0936048892439E+22
Surface area	5.744092252857E+15
Circumference	134333904.9649

Square

Length = n

Perimeter	85519620
Area	457100337809025
Diagonal	30235751.613248

Cube

Length = n

Surface area	2742602026854150
Volume	9.7727617978249E+21
Space diagonal	37031081.720996

Equilateral Triangle

Length = n

Perimeter	64139715
Area	1.9793025231053E+14
Altitude	18515540.860498

Triangular Pyramid

Length = n

Surface area	1.9793025231053E+14
Volume	1.1517310230271E+21
Height	10078583.871083