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

21000487 (number)

21000487 is an odd 8-digits composite number following 21000486 and preceding 21000488. In scientific notation, it is written as 2.1000487 × 10^7. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 20488240 positive integers (up to 21000487) that are relatively prime to 21000487.

Interesting facts

21000487 has 4 divisors, whose sum is 21512736
The reverse of 21000487 is 78400012
Previous prime number is 41

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4

Name

Name	twenty-one million four hundred eighty-seven

Notation

Scientific notation	2.1000487 × 10^7
Engineering notation	2.1000487 × 10^6

Prime Factorization of 21000487

Prime Factorization 41 × 512207

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21000487	Product of the distinct prime numbers

The prime factorization of 21000487 is 41 × 512207. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 4, 84, 85, 109, 968, 7842, 10, 13406, 95139, 150086, 582339, 2465595, 3985311, 87611917, 81399727, 246691233, 801425285, 7863449783, 9076340104

Basic calculations (n = 21000487)

Multiplication

n×y

n×2	42000974
n×3	63001461
n×4	84001948
n×5	105002435

Division

n÷y

n÷2	10500243.5
n÷3	7000162.3333333
n÷3	5250121.75
n÷5	4200097.4

Exponentiation

n^y

n²	441020454237169
n³	9.2616443159418E+21
n⁴	1.9449904105556E+29
n⁵	4.0845745831997E+36

Nth Root

^y√n

²√n	4582.6288307041
³√n	275.89455031381
⁴√n	67.695116741934
⁵√n	29.137069724386

Divisors of 21000487

1, 41, 512207, 21000487

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	-21000486	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 21000487 can be divided by 4 positive divisors. The sum of these divisors (counting 21000487) is 1, the average is 0.25.

Base conversion 21000487

Base	System	Value
2	Binary	1010000000111000100100111
3	Ternary	1110111221020211
4	Quaternary	1100013010213
5	Quinary	20334003422
6	Senary	2030040251
8	Octal	120070447
10	Decimal	21000487
12	Duodecimal	7049087
16	Hexadecimal	1407127
20	Vigesimal	6b5147
36	Base36	ci42v

Cryptographic Hash Functions

md5	d7eb69a99ff043b01c5de0449a57abc6
sha1	4bba89bc36b8c8d646a6594ce7dd4afd9c67f4d2
sha256	912a0bf2a80fdbc9296579c4f7a503feb572039d0d8e87b972673024091362be
sha512	603246fa2afc23be6c1ede975a5d8c97f43fc61291758b7b7c68aadc899100f6adda8f64569ef31e6826c9b55333c6977b0d18433b4f95d44633281289a40a9c
ripemd-160	80a44f04e28cfddbd200d4b2240661a6aaf626e5

21000487 as geometric shapes

Circle

Radius = n

Diameter	42000974
Circumference	131949951.36202
Area	1.3855066191143E+15

Sphere

Radius = n

Volume	3.8795084990832E+22
Surface area	5.5420264764573E+15
Circumference	131949951.36202

Square

Length = n

Perimeter	84001948
Area	441020454237169
Diagonal	29699173.53184

Cube

Length = n

Surface area	2646122725423014
Volume	9.2616443159418E+21
Space diagonal	36373910.46769

Equilateral Triangle

Length = n

Perimeter	63001461
Area	1.9096745847897E+14
Altitude	18186955.233845

Triangular Pyramid

Length = n

Surface area	1.9096745847897E+14
Volume	1.0914952501234E+21
Height	9899724.5106133