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

21051491 (number)

21051491 is an odd 8-digits composite number following 21051490 and preceding 21051492. In scientific notation, it is written as 2.1051491 × 10^7. The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors. There are 19329280 positive integers (up to 21051491) that are relatively prime to 21051491.

Interesting facts

21051491 has 8 divisors, whose sum is 22834224
The reverse of 21051491 is 19415012
Previous prime number is 41

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5

Name

Name	twenty-one million fifty-one thousand four hundred ninety-one

Notation

Scientific notation	2.1051491 × 10^7
Engineering notation	2.1051491 × 10^6

Prime Factorization of 21051491

Prime Factorization 17 × 41 × 30203

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21051491	Product of the distinct prime numbers

The prime factorization of 21051491 is 17 × 41 × 30203. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 4, 42, 52, 875, 636, 7266, 4643, 68463, 34340, 241811, 109300, 9829438, 5361332, 63498249, 17562985, 700672767, 422561576, 7807775189, 7684739249

Basic calculations (n = 21051491)

Multiplication

n×y

n×2	42102982
n×3	63154473
n×4	84205964
n×5	105257455

Division

n÷y

n÷2	10525745.5
n÷3	7017163.6666667
n÷3	5262872.75
n÷5	4210298.2

Exponentiation

n^y

n²	443165273323081
n³	9.3292897628734E+21
n⁴	1.9639545947952E+29
n⁵	4.134417247674E+36

Nth Root

^y√n

²√n	4588.1903840185
³√n	276.11772528056
⁴√n	67.736182236811
⁵√n	29.151209067705

Divisors of 21051491

1, 17, 41, 697, 30203, 513451, 1238323, 21051491

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	-21051490	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 21051491 can be divided by 8 positive divisors. The sum of these divisors (counting 21051491) is 1, the average is 0.125.

Base conversion 21051491

Base	System	Value
2	Binary	1010000010011100001100011
3	Ternary	1110121112012212
4	Quaternary	1100103201203
5	Quinary	20342121431
6	Senary	2031112335
8	Octal	120234143
10	Decimal	21051491
12	Duodecimal	70726ab
16	Hexadecimal	1413863
20	Vigesimal	6bb8eb
36	Base36	cj7fn

Cryptographic Hash Functions

md5	a13af9674857b9f032c21d17ac41e34f
sha1	d0b49fc721caec3d889865b1fc929a14541b6f0d
sha256	e67be8c4f5fe8d45b7aa36bea0a01d102020ce7420e09ee84c62e4c2bc3ad4f7
sha512	bddd0c9677363e1fbc3e423a5b666bbdf0790af859916e356eeb2c06042542587db6227e01847a7c1a57aaccd8fdab96319942dc0e67046bb49a43dfb3dec66d
ripemd-160	105ea0db7c288976a81db83f1cc6c8ea8db711a0

21051491 as geometric shapes

Circle

Radius = n

Diameter	42102982
Circumference	132270418.94542
Area	1.3922447669979E+15

Sphere

Radius = n

Volume	3.9078437576338E+22
Surface area	5.5689790679916E+15
Circumference	132270418.94542

Square

Length = n

Perimeter	84205964
Area	443165273323081
Diagonal	29771304.080375

Cube

Length = n

Surface area	2658991639938486
Volume	9.3292897628734E+21
Space diagonal	36462251.987079

Equilateral Triangle

Length = n

Perimeter	63154473
Area	1.9189619238643E+14
Altitude	18231125.993539

Triangular Pyramid

Length = n

Surface area	1.9189619238643E+14
Volume	1.099467342497E+21
Height	9923768.0267917