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

21000428 (number)

21000428 is an even 8-digits composite number following 21000427 and preceding 21000429. In scientific notation, it is written as 2.1000428 × 10^7. The sum of its digits is 17. It has a total of 3 prime factors and 6 positive divisors. There are 10500212 positive integers (up to 21000428) that are relatively prime to 21000428.

Interesting facts

21000428 has 6 divisors, whose sum is 36750756
The reverse of 21000428 is 82400012
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 17
Digital Root 8

Name

Name	twenty-one million four hundred twenty-eight

Notation

Scientific notation	2.1000428 × 10^7
Engineering notation	2.1000428 × 10^6

Prime Factorization of 21000428

Prime Factorization 2 × 2 × 5250107

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	10500214	Product of the distinct prime numbers

The prime factorization of 21000428 is 2 × 2 × 5250107. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 3, 62, 25, 37, 467, 3620, 8878, 21704, 85791, 464207, 423628, 3670462, 7455620, 41804455, 72467039, 70360895, 227613369, 3323773793, 1037112880

Basic calculations (n = 21000428)

Multiplication

n×y

n×2	42000856
n×3	63001284
n×4	84001712
n×5	105002140

Division

n÷y

n÷2	10500214
n÷3	7000142.6666667
n÷3	5250107
n÷5	4200085.6

Exponentiation

n^y

n²	441017976183184
n³	9.2615662555407E+21
n⁴	1.9449685531671E+29
n⁵	4.084517206305E+36

Nth Root

^y√n

²√n	4582.6223933464
³√n	275.89429194212
⁴√n	67.695069195226
⁵√n	29.137053352489

Divisors of 21000428

1, 2, 4, 5250107, 10500214, 21000428

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21000427	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21000428 can be divided by 6 positive divisors. The sum of these divisors (counting 21000428) is 1, the average is 0.16666666666667.

Base conversion 21000428

Base	System	Value
2	Binary	1010000000111000011101100
3	Ternary	1110111221011122
4	Quaternary	1100013003230
5	Quinary	20334003203
6	Senary	2030040112
8	Octal	120070354
10	Decimal	21000428
12	Duodecimal	7049038
16	Hexadecimal	14070ec
20	Vigesimal	6b5118
36	Base36	ci418

Cryptographic Hash Functions

md5	cf60a312eace807d2cad3ffbe2d788ff
sha1	b0469017898f53c1ef56f394038d04be4052d524
sha256	9956b509bb757b24b7e2a88debd7391ffb76c79b0e59f8bdb5be2233569864e2
sha512	9d80cdab725362decba37eb3464b24f2a010b1bba41ad19c786bc9fbce6574ed836da9ffa7f84384900dda927f09eb26fb5f36bba327b8f062dc50baf90f5666
ripemd-160	36289dbc379d0588cb184998d8dc22a740d6cf0a

21000428 as geometric shapes

Circle

Radius = n

Diameter	42000856
Circumference	131949580.65408
Area	1.3854988340781E+15

Sphere

Radius = n

Volume	3.8794758012189E+22
Surface area	5.5419953363125E+15
Circumference	131949580.65408

Square

Length = n

Perimeter	84001712
Area	441017976183184
Diagonal	29699090.09324

Cube

Length = n

Surface area	2646107857099104
Volume	9.2615662555407E+21
Space diagonal	36373808.276692

Equilateral Triangle

Length = n

Perimeter	63001284
Area	1.9096638545012E+14
Altitude	18186904.138346

Triangular Pyramid

Length = n

Surface area	1.9096638545012E+14
Volume	1.0914860506169E+21
Height	9899696.6977466