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

21040905 (number)

21040905 is an odd 8-digits composite number following 21040904 and preceding 21040906. In scientific notation, it is written as 2.1040905 × 10^7. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 11221808 positive integers (up to 21040905) that are relatively prime to 21040905.

Interesting facts

21040905 has 8 divisors, whose sum is 33665472
The reverse of 21040905 is 50904012
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3

Name

Name	twenty-one million forty thousand nine hundred five

Notation

Scientific notation	2.1040905 × 10^7
Engineering notation	2.1040905 × 10^6

Prime Factorization of 21040905

Prime Factorization 3 × 5 × 1402727

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21040905	Product of the distinct prime numbers

The prime factorization of 21040905 is 3 × 5 × 1402727. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 1, 84, 41, 691, 105, 210, 6742, 57229, 1928, 707295, 878289, 5101194, 4688781, 12906815, 50923007, 895490603, 427958907, 874131383, 6510450838

Basic calculations (n = 21040905)

Multiplication

n×y

n×2	42081810
n×3	63122715
n×4	84163620
n×5	105204525

Division

n÷y

n÷2	10520452.5
n÷3	7013635
n÷3	5260226.25
n÷5	4208181

Exponentiation

n^y

n²	442719683219025
n³	9.3152227962416E+21
n⁴	1.9600071790955E+29
n⁵	4.1240324854667E+36

Nth Root

^y√n

²√n	4587.036625099
³√n	276.07143446076
⁴√n	67.727665138399
⁵√n	29.148276669329

Divisors of 21040905

1, 3, 5, 15, 1402727, 4208181, 7013635, 21040905

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	-21040904	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 21040905 can be divided by 8 positive divisors. The sum of these divisors (counting 21040905) is 1, the average is 0.125.

Base conversion 21040905

Base	System	Value
2	Binary	1010000010000111100001001
3	Ternary	1110120222200210
4	Quaternary	1100100330021
5	Quinary	20341302110
6	Senary	2030551333
8	Octal	120207411
10	Decimal	21040905
12	Duodecimal	7068549
16	Hexadecimal	1410f09
20	Vigesimal	6ba255
36	Base36	ciz9l

Cryptographic Hash Functions

md5	c6702bf295de642a0a58ac8a3e4a27ce
sha1	fa9fbec84518b0d04169a74752d4d460215f60f3
sha256	d1404b377539a2c15eb4087c5e448fd740ef6fb537c31241771cc98178efbfcd
sha512	c8dadd443f6e5a6b0fc7c5dcc51b53bc5b7c01d84a6575fce4531d5a87290d653126f4d61fde5b7a2ebe81c15efeefdbf451725e54d919c14859fdf952801af1
ripemd-160	782829dbf74d416505940c335eac4b3692f51458

21040905 as geometric shapes

Circle

Radius = n

Diameter	42081810
Circumference	132203905.14576
Area	1.3908449044005E+15

Sphere

Radius = n

Volume	3.90195140043E+22
Surface area	5.563379617602E+15
Circumference	132203905.14576

Square

Length = n

Perimeter	84163620
Area	442719683219025
Diagonal	29756333.215604

Cube

Length = n

Surface area	2656318099314150
Volume	9.3152227962416E+21
Space diagonal	36443916.49723

Equilateral Triangle

Length = n

Perimeter	63122715
Area	1.9170324621154E+14
Altitude	18221958.248615

Triangular Pyramid

Length = n

Surface area	1.9170324621154E+14
Volume	1.097809534581E+21
Height	9918777.7385346