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

21531638 (number)

21531638 is an even 8-digits composite number following 21531637 and preceding 21531639. In scientific notation, it is written as 2.1531638 × 10^7. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 10757520 positive integers (up to 21531638) that are relatively prime to 21531638.

Interesting facts

21531638 has 8 divisors, whose sum is 32322360
The reverse of 21531638 is 83613512
Previous prime number is 1609

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2

Name

Name	twenty-one million five hundred thirty-one thousand six hundred thirty-eight

Notation

Scientific notation	2.1531638 × 10^7
Engineering notation	2.1531638 × 10^6

Prime Factorization of 21531638

Prime Factorization 2 × 1609 × 6691

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21531638	Product of the distinct prime numbers

The prime factorization of 21531638 is 2 × 1609 × 6691. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 8, 34, 20, 798, 398, 4083, 8659, 9267, 88222, 47648, 407275, 8188597, 1059759, 33868396, 82919765, 628960559, 727542357, 182809887, 3324253424

Basic calculations (n = 21531638)

Multiplication

n×y

n×2	43063276
n×3	64594914
n×4	86126552
n×5	107658190

Division

n÷y

n÷2	10765819
n÷3	7177212.6666667
n÷3	5382909.5
n÷5	4306327.6

Exponentiation

n^y

n²	463611434963044
n³	9.9823135902848E+21
n⁴	2.1493556262849E+29
n⁵	4.627914727843E+36

Nth Root

^y√n

²√n	4640.2196068721
³√n	278.20121553887
⁴√n	68.119157414578
⁵√n	29.282989645711

Divisors of 21531638

1, 2, 1609, 3218, 6691, 13382, 10765819, 21531638

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	-21531637	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 21531638 can be divided by 8 positive divisors. The sum of these divisors (counting 21531638) is 1, the average is 0.125.

Base conversion 21531638

Base	System	Value
2	Binary	1010010001000101111110110
3	Ternary	1111111220212002
4	Quaternary	1102020233312
5	Quinary	21003003023
6	Senary	2045255302
8	Octal	122105766
10	Decimal	21531638
12	Duodecimal	7264532
16	Hexadecimal	1488bf6
20	Vigesimal	6eb91i
36	Base36	cthx2

Cryptographic Hash Functions

md5	d9c83662b2cfd46322da2abef60b2225
sha1	0c0bce50588d24d5505e530aab9a1863ec490a64
sha256	7f1006b1f9c0708679a646b2ab73ab18b7c01689b6124622c3b1e1286b2165ba
sha512	56cd59c160fdc3509d3c5b9bf61a1d7c599cfdf88f926db818a252a8623a2da665996b0dbe422db57d36d5d0812f355d9bf492f79a126b31d9b0904070c14b4f
ripemd-160	f316ce7dc0ad27feae061ee4b976cb5fba6718ad

21531638 as geometric shapes

Circle

Radius = n

Diameter	43063276
Circumference	135287271.52111
Area	1.4564782782001E+15

Sphere

Radius = n

Volume	4.1813817388091E+22
Surface area	5.8259131128005E+15
Circumference	135287271.52111

Square

Length = n

Perimeter	86126552
Area	463611434963044
Diagonal	30450334.479708

Cube

Length = n

Surface area	2781668609778264
Volume	9.9823135902848E+21
Space diagonal	37293890.986181

Equilateral Triangle

Length = n

Perimeter	64594914
Area	2.0074964008148E+14
Altitude	18646945.49309

Triangular Pyramid

Length = n

Surface area	2.0074964008148E+14
Volume	1.1764269386035E+21
Height	10150111.493236