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

21131921 (number)

21131921 is an odd 8-digits composite number following 21131920 and preceding 21131922. In scientific notation, it is written as 2.1131921 × 10^7. The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors. There are 20560752 positive integers (up to 21131921) that are relatively prime to 21131921.

Interesting facts

21131921 has 4 divisors, whose sum is 21703092
The reverse of 21131921 is 12913112
Previous prime number is 37

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2

Name

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

Notation

Scientific notation	2.1131921 × 10^7
Engineering notation	2.1131921 × 10^6

Prime Factorization of 21131921

Prime Factorization 37 × 571133

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21131921	Product of the distinct prime numbers

The prime factorization of 21131921 is 37 × 571133. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 8, 39, 31, 169, 199, 5759, 5126, 88869, 68371, 6792, 851814, 4095574, 614073, 33107703, 34516747, 717602252, 608591497, 4401639033, 1960853347

Basic calculations (n = 21131921)

Multiplication

n×y

n×2	42263842
n×3	63395763
n×4	84527684
n×5	105659605

Division

n÷y

n÷2	10565960.5
n÷3	7043973.6666667
n÷3	5282980.25
n÷5	4226384.2

Exponentiation

n^y

n²	446558085150241
n³	9.4366301773062E+21
n⁴	1.9941412341305E+29
n⁵	4.2140035022488E+36

Nth Root

^y√n

²√n	4596.9469215992
³√n	276.46892646104
⁴√n	67.800788502783
⁵√n	29.173450311781

Divisors of 21131921

1, 37, 571133, 21131921

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	-21131920	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 21131921 can be divided by 4 positive divisors. The sum of these divisors (counting 21131921) is 1, the average is 0.25.

Base conversion 21131921

Base	System	Value
2	Binary	1010000100111001010010001
3	Ternary	1110202121112202
4	Quaternary	1100213022101
5	Quinary	20402210141
6	Senary	2032532545
8	Octal	120471221
10	Decimal	21131921
12	Duodecimal	70b1155
16	Hexadecimal	1427291
20	Vigesimal	6c19g1
36	Base36	ckxht

Cryptographic Hash Functions

md5	9fee98516675f366cd180c70e62331e5
sha1	b8926d7464350699eff590d7beb19bbaf7519ab9
sha256	f3da036dbc0d8eb6b697a73fa8c53a211e5fb22b94b10178ab91ea7b589bf95e
sha512	936839fe985ce10c341d25137c652580168c708b910eb3f6cc83061918e5fab4979e8f82345f8afe20d36ef4d31a3a882999b41c30efbf7d917c9b504ef66d0f
ripemd-160	5220f65215c3ea2552944aee2038c2f0f6c42be1

21131921 as geometric shapes

Circle

Radius = n

Diameter	42263842
Circumference	132775775.53968
Area	1.4029035997091E+15

Sphere

Radius = n

Volume	3.9528064052892E+22
Surface area	5.6116143988365E+15
Circumference	132775775.53968

Square

Length = n

Perimeter	84527684
Area	446558085150241
Diagonal	29885049.277197

Cube

Length = n

Surface area	2679348510901446
Volume	9.4366301773062E+21
Space diagonal	36601560.833532

Equilateral Triangle

Length = n

Perimeter	63395763
Area	1.9336532300272E+14
Altitude	18300780.416766

Triangular Pyramid

Length = n

Surface area	1.9336532300272E+14
Volume	1.1121175316538E+21
Height	9961683.0923989