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

21000820 (number)

21000820 is an even 8-digits composite number following 21000819 and preceding 21000821. In scientific notation, it is written as 2.1000820 × 10^7. The sum of its digits is 13. It has a total of 4 prime factors and 12 positive divisors. There are 8400320 positive integers (up to 21000820) that are relatively prime to 21000820.

Interesting facts

21000820 has 12 divisors, whose sum is 44101764
The reverse of 21000820 is 02800012
Previous prime number is 5

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 13
Digital Root 4

Name

Name	twenty-one million eight hundred twenty

Notation

Scientific notation	2.1000820 × 10^7
Engineering notation	2.1000820 × 10^6

Prime Factorization of 21000820

Prime Factorization 2 × 2 × 5 × 1050041

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	10500410	Product of the distinct prime numbers

The prime factorization of 21000820 is 2 × 2 × 5 × 1050041. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 9, 25, 57, 626, 885, 2581, 3508, 99995, 90199, 716646, 287286, 3904391, 3297911, 75179988, 36978436, 673530243, 933602848, 9044161559, 4403871459

Basic calculations (n = 21000820)

Multiplication

n×y

n×2	42001640
n×3	63002460
n×4	84003280
n×5	105004100

Division

n÷y

n÷2	10500410
n÷3	7000273.3333333
n÷3	5250205
n÷5	4200164

Exponentiation

n^y

n²	441034440672400
n³	9.2620849023618E+21
n⁴	1.9451137785922E+29
n⁵	4.0848984343734E+36

Nth Root

^y√n

²√n	4582.6651634175
³√n	275.89600857205
⁴√n	67.695385096899
⁵√n	29.137162127792

Divisors of 21000820

1, 2, 4, 5, 10, 20, 1050041, 2100082, 4200164, 5250205, 10500410, 21000820

12 divisors

τ	Total Divisors	12	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21000819	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.083333333333333	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	12	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21000820 can be divided by 12 positive divisors. The sum of these divisors (counting 21000820) is 1, the average is 0.083333333333333.

Base conversion 21000820

Base	System	Value
2	Binary	1010000000111001001110100
3	Ternary	1110111221201011
4	Quaternary	1100013021310
5	Quinary	20334011240
6	Senary	2030042004
8	Octal	120071164
10	Decimal	21000820
12	Duodecimal	7049304
16	Hexadecimal	1407274
20	Vigesimal	6b5210
36	Base36	ci4c4

Cryptographic Hash Functions

md5	f3193200b73d678678f8085d64162fb2
sha1	fe69b1e7e26ff15ffcaefa24f5bd0f6542766628
sha256	79b9b18eb974494ff720ba1ee59aa18d83200ea9a74345c78b6a1ce5782da797
sha512	2be3ad526841fddb22242af7b865e63bed983be5121de462ec3d1d92fdcaf287fabebb83ac94a80692832a661be37a61c3fd901fbe0abe3151f6b31b4ff9a945
ripemd-160	1f8fc18a37af8bdd567f411596ba058a566a744d

21000820 as geometric shapes

Circle

Radius = n

Diameter	42001640
Circumference	131952043.66272
Area	1.3855505587965E+15

Sphere

Radius = n

Volume	3.8796930514913E+22
Surface area	5.542202235186E+15
Circumference	131952043.66272

Square

Length = n

Perimeter	84003280
Area	441034440672400
Diagonal	29699644.464956

Cube

Length = n

Surface area	2646206644034400
Volume	9.2620849023618E+21
Space diagonal	36374487.240609

Equilateral Triangle

Length = n

Perimeter	63002460
Area	1.9097351478308E+14
Altitude	18187243.620304

Triangular Pyramid

Length = n

Surface area	1.9097351478308E+14
Volume	1.0915471737309E+21
Height	9899881.4883187