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

21821921 (number)

21821921 is an odd 8-digits composite number following 21821920 and preceding 21821922. In scientific notation, it is written as 2.1821921 × 10^7. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 19558000 positive integers (up to 21821921) that are relatively prime to 21821921.

Interesting facts

21821921 has 8 divisors, whose sum is 24141888
The reverse of 21821921 is 12912812
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

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

Notation

Scientific notation	2.1821921 × 10^7
Engineering notation	2.1821921 × 10^6

Prime Factorization of 21821921

Prime Factorization 71 × 11 × 27941

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21821921	Product of the distinct prime numbers

The prime factorization of 21821921 is 71 × 11 × 27941. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 3, 57, 62, 5, 282, 7477, 828, 28037, 50771, 164145, 330153, 7483817, 6444742, 34612598, 58273587, 247611761, 3450610, 5423592319, 1598730428

Basic calculations (n = 21821921)

Multiplication

n×y

n×2	43643842
n×3	65465763
n×4	87287684
n×5	109109605

Division

n÷y

n÷2	10910960.5
n÷3	7273973.6666667
n÷3	5455480.25
n÷5	4364384.2

Exponentiation

n^y

n²	476196236130241
n³	1.0391516645331E+22
n⁴	2.2676285530461E+29
n⁵	4.9484011141916E+36

Nth Root

^y√n

²√n	4671.3939033226
³√n	279.4458470167
⁴√n	68.347596178085
⁵√n	29.36152414217

Divisors of 21821921

1, 11, 71, 781, 27941, 307351, 1983811, 21821921

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	-21821920	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 21821921 can be divided by 8 positive divisors. The sum of these divisors (counting 21821921) is 1, the average is 0.125.

Base conversion 21821921

Base	System	Value
2	Binary	1010011001111100111100001
3	Ternary	1112001200001022
4	Quaternary	1103033213201
5	Quinary	21041300141
6	Senary	2055415225
8	Octal	123174741
10	Decimal	21821921
12	Duodecimal	7384515
16	Hexadecimal	14cf9e1
20	Vigesimal	6g7eg1
36	Base36	czpwh

Cryptographic Hash Functions

md5	90b4d760006831726d892b64f8af0e74
sha1	ac9705e6f3f978959fcb61d7715587920fd470c1
sha256	30d25ab809f87f0f69b732d0f5919f1cb46a08eb16ad0275d6110079ed82b6fb
sha512	07a83a0d6c9da31632d02d91932191618d2890ebe462d0c97db418df4581ee22229940e8c0c575ce7289e80185321cf336cfe8745b1004e6c0650f470100cac5
ripemd-160	bd2d08d11eec1a12fd70d0680a73b47e6c0b560e

21821921 as geometric shapes

Circle

Radius = n

Diameter	43643842
Circumference	137111173.40163
Area	1.4960145970939E+15

Sphere

Radius = n

Volume	4.3527883136839E+22
Surface area	5.9840583883755E+15
Circumference	137111173.40163

Square

Length = n

Perimeter	87287684
Area	476196236130241
Diagonal	30860856.635234

Cube

Length = n

Surface area	2857177416781446
Volume	1.0391516645331E+22
Space diagonal	37796675.890754

Equilateral Triangle

Length = n

Perimeter	65465763
Area	2.0619901883766E+14
Altitude	18898337.945377

Triangular Pyramid

Length = n

Surface area	2.0619901883766E+14
Volume	1.2246519811211E+21
Height	10286952.211745