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

21031921 (number)

21031921 is an odd 8-digits composite number following 21031920 and preceding 21031922. In scientific notation, it is written as 2.1031921 × 10^7. The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors. There are 21017844 positive integers (up to 21031921) that are relatively prime to 21031921.

Interesting facts

21031921 has 4 divisors, whose sum is 21046000
The reverse of 21031921 is 12913012
Previous prime number is 1699

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1

Name

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

Notation

Scientific notation	2.1031921 × 10^7
Engineering notation	2.1031921 × 10^6

Prime Factorization of 21031921

Prime Factorization 1699 × 12379

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21031921	Product of the distinct prime numbers

The prime factorization of 21031921 is 1699 × 12379. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 2, 64, 71, 845, 540, 1678, 4879, 77811, 85685, 827921, 203382, 5585562, 9559347, 72692014, 315120, 582002970, 469870415, 2919765642, 5512815346

Basic calculations (n = 21031921)

Multiplication

n×y

n×2	42063842
n×3	63095763
n×4	84127684
n×5	105159605

Division

n÷y

n÷2	10515960.5
n÷3	7010640.3333333
n÷3	5257980.25
n÷5	4206384.2

Exponentiation

n^y

n²	442341700950241
n³	9.3032957093911E+21
n⁴	1.9566618039955E+29
n⁵	4.1152356485351E+36

Nth Root

^y√n

²√n	4586.0572390671
³√n	276.03213673963
⁴√n	67.720434427631
⁵√n	29.145787110502

Divisors of 21031921

1, 1699, 12379, 21031921

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	-21031920	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 21031921 can be divided by 4 positive divisors. The sum of these divisors (counting 21031921) is 1, the average is 0.25.

Base conversion 21031921

Base	System	Value
2	Binary	1010000001110101111110001
3	Ternary	1110120112101001
4	Quaternary	1100032233301
5	Quinary	20341010141
6	Senary	2030442001
8	Octal	120165761
10	Decimal	21031921
12	Duodecimal	7063301
16	Hexadecimal	140ebf1
20	Vigesimal	6b8jg1
36	Base36	cisc1

Cryptographic Hash Functions

md5	dfcf0275b3c5edf665bc91d26915de53
sha1	cf8ba7f07e4f7b583497a0aa2de9f30d06e5c9cf
sha256	a2959c65e364b686209d02394835fdc42f7877ec86a6c6f6f9f6f3024d13cc10
sha512	4d20d2180add74c20254eae188027bab2c56255aff0809babdfe93a3869ac5a4248d6d705ee1ab218f0206699f73cfdb238086fc84ca9be5853c9499c65ceae1
ripemd-160	b5ce2cc9097b1a5091aee433a2051a9410d0141b

21031921 as geometric shapes

Circle

Radius = n

Diameter	42063842
Circumference	132147457.00896
Area	1.3896574380817E+15

Sphere

Radius = n

Volume	3.8969553939729E+22
Surface area	5.5586297523268E+15
Circumference	132147457.00896

Square

Length = n

Perimeter	84127684
Area	442341700950241
Diagonal	29743627.92096

Cube

Length = n

Surface area	2654050205701446
Volume	9.3032957093911E+21
Space diagonal	36428355.752775

Equilateral Triangle

Length = n

Perimeter	63095763
Area	1.9153957508806E+14
Altitude	18214177.876387

Triangular Pyramid

Length = n

Surface area	1.9153957508806E+14
Volume	1.0964039139157E+21
Height	9914542.6403198