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

21421909 (number)

21421909 is an odd 8-digits composite number following 21421908 and preceding 21421910. In scientific notation, it is written as 2.1421909 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 21354016 positive integers (up to 21421909) that are relatively prime to 21421909.

Interesting facts

21421909 has 4 divisors, whose sum is 21489804
The reverse of 21421909 is 90912412
Previous prime number is 317

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	twenty-one million four hundred twenty-one thousand nine hundred nine

Notation

Scientific notation	2.1421909 × 10^7
Engineering notation	2.1421909 × 10^6

Prime Factorization of 21421909

Prime Factorization 317 × 67577

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21421909	Product of the distinct prime numbers

The prime factorization of 21421909 is 317 × 67577. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 8, 95, 88, 52, 467, 1392, 8530, 97868, 71004, 652668, 429464, 3565884, 1305884, 5653867, 16504524, 27047316, 591123342, 379926406, 6736666715

Basic calculations (n = 21421909)

Multiplication

n×y

n×2	42843818
n×3	64265727
n×4	85687636
n×5	107109545

Division

n÷y

n÷2	10710954.5
n÷3	7140636.3333333
n÷3	5355477.25
n÷5	4284381.8

Exponentiation

n^y

n²	458898185204281
n³	9.8304751637113E+21
n⁴	2.1058754438378E+29
n⁵	4.5111872123229E+36

Nth Root

^y√n

²√n	4628.3808183856
³√n	277.72782308203
⁴√n	68.032204274047
⁵√n	29.253082369092

Divisors of 21421909

1, 317, 67577, 21421909

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21421908	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21421909 can be divided by 4 positive divisors. The sum of these divisors (counting 21421909) is 1, the average is 0.25.

Base conversion 21421909

Base	System	Value
2	Binary	1010001101101111101010101
3	Ternary	1111022100100001
4	Quaternary	1101231331111
5	Quinary	20441000114
6	Senary	2043051301
8	Octal	121557525
10	Decimal	21421909
12	Duodecimal	7210b31
16	Hexadecimal	146df55
20	Vigesimal	6dhef9
36	Base36	cr591

Cryptographic Hash Functions

md5	b702acd14b4cb0fc6eb0f014158a23c1
sha1	c637e9ebbc2f610d2cc123647d3878e9f246b91a
sha256	f3c35247b553e90dd2b47ca639c0227cfed575d0b78cdd4a4132b71578cf78ad
sha512	0df075a4c98b03fa8a531cd91b2bfb1ca40ae0787b307292c0c542498cf176105d4e76af625beaf563e01d8c2b75ec0e8b2ad9961920c5c8336e4e7115df15cf
ripemd-160	48c40edb78a29e11949658040701c4f680479117

21421909 as geometric shapes

Circle

Radius = n

Diameter	42843818
Circumference	134597823.88054
Area	1.4416711673835E+15

Sphere

Radius = n

Volume	4.117779807415E+22
Surface area	5.7666846695338E+15
Circumference	134597823.88054

Square

Length = n

Perimeter	85687636
Area	458898185204281
Diagonal	30295154.239722

Cube

Length = n

Surface area	2753389111225686
Volume	9.8304751637113E+21
Space diagonal	37103834.783117

Equilateral Triangle

Length = n

Perimeter	64265727
Area	1.9870874306874E+14
Altitude	18551917.391558

Triangular Pyramid

Length = n

Surface area	1.9870874306874E+14
Volume	1.1585326084244E+21
Height	10098384.746574