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

21491284 (number)

21491284 is an even 8-digits composite number following 21491283 and preceding 21491285. In scientific notation, it is written as 2.1491284 × 10^7. The sum of its digits is 31. It has a total of 3 prime factors and 6 positive divisors. There are 10745640 positive integers (up to 21491284) that are relatively prime to 21491284.

Interesting facts

21491284 has 6 divisors, whose sum is 37609754
The reverse of 21491284 is 48219412
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4

Name

Name	twenty-one million four hundred ninety-one thousand two hundred eighty-four

Notation

Scientific notation	2.1491284 × 10^7
Engineering notation	2.1491284 × 10^6

Prime Factorization of 21491284

Prime Factorization 2 × 2 × 5372821

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	10745642	Product of the distinct prime numbers

The prime factorization of 21491284 is 2 × 2 × 5372821. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 10, 19, 71, 464, 937, 4195, 6787, 82836, 24484, 341805, 351515, 5206803, 8232648, 25194350, 2932669, 345630003, 418948137, 6201125157, 9206378003

Basic calculations (n = 21491284)

Multiplication

n×y

n×2	42982568
n×3	64473852
n×4	85965136
n×5	107456420

Division

n÷y

n÷2	10745642
n÷3	7163761.3333333
n÷3	5372821
n÷5	4298256.8

Exponentiation

n^y

n²	461875287968656
n³	9.9262929863162E+21
n⁴	2.1332878163613E+29
n⁵	4.584709431516E+36

Nth Root

^y√n

²√n	4635.8692820225
³√n	278.02730784315
⁴√n	68.087218198591
⁵√n	29.272005134131

Divisors of 21491284

1, 2, 4, 5372821, 10745642, 21491284

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	-21491283	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 21491284 can be divided by 6 positive divisors. The sum of these divisors (counting 21491284) is 1, the average is 0.16666666666667.

Base conversion 21491284

Base	System	Value
2	Binary	1010001111110111001010100
3	Ternary	1111102212111111
4	Quaternary	1101332321110
5	Quinary	21000210114
6	Senary	2044344404
8	Octal	121767124
10	Decimal	21491284
12	Duodecimal	7245104
16	Hexadecimal	147ee54
20	Vigesimal	6e6844
36	Base36	csms4

Cryptographic Hash Functions

md5	7e9f00eeb1d3ef19c6cb9d48ae88e40e
sha1	936237ae01e5284af902e352ed160903f98d6b26
sha256	4cf80bf08bfe726b94484dd1555f636d18aaa3024aeed6a20fb6666129401af5
sha512	dd349c8f20bad7f41736dbd32d5239f2121ca71d80060680e9b2a7c560788955b68b232e469e9f2f262f31e4f29dd930ea677a901e5d009cd8606f6763c4bfe2
ripemd-160	f2c7283896bcc88c0178fbd6b7da6ef042e38011

21491284 as geometric shapes

Circle

Radius = n

Diameter	42982568
Circumference	135033719.86122
Area	1.451024011557E+15

Sphere

Radius = n

Volume	4.1579158830921E+22
Surface area	5.804096046228E+15
Circumference	135033719.86122

Square

Length = n

Perimeter	85965136
Area	461875287968656
Diagonal	30393265.305612

Cube

Length = n

Surface area	2771251727811936
Volume	9.9262929863162E+21
Space diagonal	37223995.807892

Equilateral Triangle

Length = n

Perimeter	64473852
Area	1.9999786638055E+14
Altitude	18611997.903946

Triangular Pyramid

Length = n

Surface area	1.9999786638055E+14
Volume	1.1698248471114E+21
Height	10131088.435204