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

21000387 (number)

21000387 is an odd 8-digits composite number following 21000386 and preceding 21000388. In scientific notation, it is written as 2.1000387 × 10^7. The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors. There are 14000256 positive integers (up to 21000387) that are relatively prime to 21000387.

Interesting facts

21000387 has 4 divisors, whose sum is 28000520
The reverse of 21000387 is 78300012
Previous prime number is 3

Basic properties

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

Name

Name	twenty-one million three hundred eighty-seven

Notation

Scientific notation	2.1000387 × 10^7
Engineering notation	2.1000387 × 10^6

Prime Factorization of 21000387

Prime Factorization 3 × 7000129

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21000387	Product of the distinct prime numbers

The prime factorization of 21000387 is 3 × 7000129. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 10, 19, 49, 480, 873, 6834, 7516, 3584, 40020, 562447, 306946, 2254964, 3288965, 2962774, 21443636, 881760125, 720472468, 5254822163, 52453963

Basic calculations (n = 21000387)

Multiplication

n×y

n×2	42000774
n×3	63001161
n×4	84001548
n×5	105001935

Division

n÷y

n÷2	10500193.5
n÷3	7000129
n÷3	5250096.75
n÷5	4200077.4

Exponentiation

n^y

n²	441016254149769
n³	9.2615120104355E+21
n⁴	1.9449533642429E+29
n⁵	4.0844773346054E+36

Nth Root

^y√n

²√n	4582.6179199231
³√n	275.89411239541
⁴√n	67.695036154234
⁵√n	29.137041975386

Divisors of 21000387

1, 3, 7000129, 21000387

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	-21000386	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 21000387 can be divided by 4 positive divisors. The sum of these divisors (counting 21000387) is 1, the average is 0.25.

Base conversion 21000387

Base	System	Value
2	Binary	1010000000111000011000011
3	Ternary	1110111221010010
4	Quaternary	1100013003003
5	Quinary	20334003022
6	Senary	2030040003
8	Octal	120070303
10	Decimal	21000387
12	Duodecimal	7049003
16	Hexadecimal	14070c3
20	Vigesimal	6b50j7
36	Base36	ci403

Cryptographic Hash Functions

md5	4af97afedfc30cadf975fe66a24ddd55
sha1	ae780803eca4361c60bebcce0c57f80e165d5caa
sha256	904a060ae38cf6fb9b828681baa914b7ce4ecfc7a28faa0cbd9385155a5734db
sha512	47626cf90cbdde7846243295d19ca2c6205b46bfcf1ff2dff6e50e0297ca74d16956c5aed1e59d8d0844004b863e803167acf977c97975aa9b714a48c786e308
ripemd-160	4ea96f499d37c7073bea93b8b70a46c354d9d125

21000387 as geometric shapes

Circle

Radius = n

Diameter	42000774
Circumference	131949323.04349
Area	1.3854934241506E+15

Sphere

Radius = n

Volume	3.8794530790824E+22
Surface area	5.5419736966024E+15
Circumference	131949323.04349

Square

Length = n

Perimeter	84001548
Area	441016254149769
Diagonal	29699032.110484

Cube

Length = n

Surface area	2646097524898614
Volume	9.2615120104355E+21
Space diagonal	36373737.262609

Equilateral Triangle

Length = n

Perimeter	63001161
Area	1.9096563978778E+14
Altitude	18186868.631304

Triangular Pyramid

Length = n

Surface area	1.9096563978778E+14
Volume	1.0914796577699E+21
Height	9899677.3701612