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

21438021 (number)

21438021 is an odd 8-digits composite number following 21438020 and preceding 21438022. In scientific notation, it is written as 2.1438021 × 10^7. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 12875520 positive integers (up to 21438021) that are relatively prime to 21438021.

Interesting facts

21438021 has 8 divisors, whose sum is 28612000
The reverse of 21438021 is 12083412
Previous prime number is 1243

Basic properties

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

Name

Name	twenty-one million four hundred thirty-eight thousand twenty-one

Notation

Scientific notation	2.1438021 × 10^7
Engineering notation	2.1438021 × 10^6

Prime Factorization of 21438021

Prime Factorization 3 × 1243 × 5749

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21438021	Product of the distinct prime numbers

The prime factorization of 21438021 is 3 × 1243 × 5749. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 8, 46, 48, 148, 289, 171, 7130, 62003, 28471, 878764, 335893, 4918526, 6128828, 27452710, 65667667, 128522148, 365174626, 7185441058, 662918452

Basic calculations (n = 21438021)

Multiplication

n×y

n×2	42876042
n×3	64314063
n×4	85752084
n×5	107190105

Division

n÷y

n÷2	10719010.5
n÷3	7146007
n÷3	5359505.25
n÷5	4287604.2

Exponentiation

n^y

n²	459588744396441
n³	9.8526731537345E+21
n⁴	2.112218139759E+29
n⁵	4.5281776836734E+36

Nth Root

^y√n

²√n	4630.1210567327
³√n	277.79743451416
⁴√n	68.044992885096
⁵√n	29.257481453491

Divisors of 21438021

1, 3, 1243, 3729, 5749, 17247, 7146007, 21438021

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21438020	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21438021 can be divided by 8 positive divisors. The sum of these divisors (counting 21438021) is 1, the average is 0.125.

Base conversion 21438021

Base	System	Value
2	Binary	1010001110001111001000101
3	Ternary	1111100011102210
4	Quaternary	1101301321011
5	Quinary	20442004041
6	Senary	2043254033
8	Octal	121617105
10	Decimal	21438021
12	Duodecimal	721a319
16	Hexadecimal	1471e45
20	Vigesimal	6djf11
36	Base36	crhol

Cryptographic Hash Functions

md5	cac95073e815ae941e074cda0d17df90
sha1	dee4eebc0386a60ab509699f8ec8f701dcc76875
sha256	368a9d9bc828bceb9a49a4f0c0f044f36a93dbe44223eda7a737c3907f7ae98a
sha512	08324c8597fab907579998ca18c5ab66fdb7d1a11c71f083bcd3239bf94a88230d49b85c762515e310c7f0e28be01476f4fcb0361e3f3cfd10d34ee5040c29c9
ripemd-160	d9d6089e8adbae49fd93c951bc36a484ceaf1dc1

21438021 as geometric shapes

Circle

Radius = n

Diameter	42876042
Circumference	134699058.56221
Area	1.4438406230684E+15

Sphere

Radius = n

Volume	4.1270780797325E+22
Surface area	5.7753624922737E+15
Circumference	134699058.56221

Square

Length = n

Perimeter	85752084
Area	459588744396441
Diagonal	30317940.048639

Cube

Length = n

Surface area	2757532466378646
Volume	9.8526731537345E+21
Space diagonal	37131741.585729

Equilateral Triangle

Length = n

Perimeter	64314063
Area	1.9900776397036E+14
Altitude	18565870.792864

Triangular Pyramid

Length = n

Surface area	1.9900776397036E+14
Volume	1.1611486666367E+21
Height	10105980.016213