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

21131387 (number)

21131387 is an odd 8-digits composite number following 21131386 and preceding 21131388. In scientific notation, it is written as 2.1131387 × 10^7. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 21122160 positive integers (up to 21131387) that are relatively prime to 21131387.

Interesting facts

21131387 has 4 divisors, whose sum is 21140616
The reverse of 21131387 is 78313112
Previous prime number is 5011

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

Name	twenty-one million one hundred thirty-one thousand three hundred eighty-seven

Notation

Scientific notation	2.1131387 × 10^7
Engineering notation	2.1131387 × 10^6

Prime Factorization of 21131387

Prime Factorization 5011 × 4217

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21131387	Product of the distinct prime numbers

The prime factorization of 21131387 is 5011 × 4217. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 7, 64, 35, 682, 643, 6460, 8749, 5348, 98736, 624016, 917883, 385191, 6201786, 21045454, 17997557, 400752223, 239876670, 2631433063, 3328851639

Basic calculations (n = 21131387)

Multiplication

n×y

n×2	42262774
n×3	63394161
n×4	84525548
n×5	105656935

Division

n÷y

n÷2	10565693.5
n÷3	7043795.6666667
n÷3	5282846.75
n÷5	4226277.4

Exponentiation

n^y

n²	446535516543769
n³	9.4359148093313E+21
n⁴	1.9939396753501E+29
n⁵	4.2134710934477E+36

Nth Root

^y√n

²√n	4596.8888392042
³√n	276.46659766739
⁴√n	67.800360170166
⁵√n	29.173302868679

Divisors of 21131387

1, 4217, 5011, 21131387

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21131386	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21131387 can be divided by 4 positive divisors. The sum of these divisors (counting 21131387) is 1, the average is 0.25.

Base conversion 21131387

Base	System	Value
2	Binary	1010000100111000001111011
3	Ternary	1110202120210222
4	Quaternary	1100213001323
5	Quinary	20402201022
6	Senary	2032530255
8	Octal	120470173
10	Decimal	21131387
12	Duodecimal	70b098b
16	Hexadecimal	142707b
20	Vigesimal	6c1897
36	Base36	ckx2z

Cryptographic Hash Functions

md5	1d25a1e441c59a4971206722371b9fd5
sha1	38342d0397817bdf718f8b782aa27b86b0272b21
sha256	4effbce1ba8d16c6cc0311bd0b4e15bf56a50414ba8e956d81f6b0681639a788
sha512	3add482cd0f7387f7efdec895a807ffe05451d40736610161005147386f71099b473253b7f2b9f13cb12832803e6570cbd344220fa332a3682d4124432e0dcd8
ripemd-160	454f83f3e47e463e23a9bf3467fc6f62261fac75

21131387 as geometric shapes

Circle

Radius = n

Diameter	42262774
Circumference	132772420.31873
Area	1.4028326983408E+15

Sphere

Radius = n

Volume	3.9525067526526E+22
Surface area	5.6113307933633E+15
Circumference	132772420.31873

Square

Length = n

Perimeter	84525548
Area	446535516543769
Diagonal	29884294.087155

Cube

Length = n

Surface area	2679213099262614
Volume	9.4359148093313E+21
Space diagonal	36600635.9184

Equilateral Triangle

Length = n

Perimeter	63394161
Area	1.9335555050946E+14
Altitude	18300317.9592

Triangular Pyramid

Length = n

Surface area	1.9335555050946E+14
Volume	1.1120332247295E+21
Height	9961431.3623848