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

21091387 (number)

21091387 is an odd 8-digits composite number following 21091386 and preceding 21091388. In scientific notation, it is written as 2.1091387 × 10^7. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 19867680 positive integers (up to 21091387) that are relatively prime to 21091387.

Interesting facts

21091387 has 8 divisors, whose sum is 22327760
The reverse of 21091387 is 78319012
Previous prime number is 181

Basic properties

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

Name

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

Notation

Scientific notation	2.1091387 × 10^7
Engineering notation	2.1091387 × 10^6

Prime Factorization of 21091387

Prime Factorization 19 × 181 × 6133

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21091387	Product of the distinct prime numbers

The prime factorization of 21091387 is 19 × 181 × 6133. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 6, 69, 9, 307, 529, 2708, 6531, 30997, 93599, 128132, 501712, 5078207, 1383603, 30328019, 3058201, 348639084, 622250185, 4686233004, 329837307

Basic calculations (n = 21091387)

Multiplication

n×y

n×2	42182774
n×3	63274161
n×4	84365548
n×5	105456935

Division

n÷y

n÷2	10545693.5
n÷3	7030462.3333333
n÷3	5272846.75
n÷5	4218277.4

Exponentiation

n^y

n²	444846605583769
n³	9.3824319140036E+21
n⁴	1.978885024994E+29
n⁵	4.1737429890653E+36

Nth Root

^y√n

²√n	4592.5360096574
³√n	276.29204454141
⁴√n	67.768252225193
⁵√n	29.162249957834

Divisors of 21091387

1, 19, 181, 3439, 6133, 116527, 1110073, 21091387

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	-21091386	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 21091387 can be divided by 8 positive divisors. The sum of these divisors (counting 21091387) is 1, the average is 0.125.

Base conversion 21091387

Base	System	Value
2	Binary	1010000011101010000111011
3	Ternary	1110200112221111
4	Quaternary	1100131100323
5	Quinary	20344411022
6	Senary	2032021151
8	Octal	120352073
10	Decimal	21091387
12	Duodecimal	70917b7
16	Hexadecimal	141d43b
20	Vigesimal	6bg897
36	Base36	ck27v

Cryptographic Hash Functions

md5	fa9aca5cee80051e7f11debfbb23eb08
sha1	b83dc4a638c5e04bed64a719ba160fb2723e7591
sha256	fb82bea2c48ee30a75ba2eb356437b21006edb2cc8e7458e223eb91ca0ff3233
sha512	28c03a6fa8066f81d47889c9dabe6398684d176485e5492b4514aaa77df53c06009fb63e15ffb4e6af3a9d2558e9214ea3263fcb4c780a64de4e54cbe97c1479
ripemd-160	461282a424279a506cb2e02fa0f2766ed46756ca

21091387 as geometric shapes

Circle

Radius = n

Diameter	42182774
Circumference	132521092.90644
Area	1.3975268280763E+15

Sphere

Radius = n

Volume	3.9301038898454E+22
Surface area	5.5901073123053E+15
Circumference	132521092.90644

Square

Length = n

Perimeter	84365548
Area	444846605583769
Diagonal	29827725.54466

Cube

Length = n

Surface area	2669079633502614
Volume	9.3824319140036E+21
Space diagonal	36531353.886098

Equilateral Triangle

Length = n

Perimeter	63274161
Area	1.9262423061141E+14
Altitude	18265676.943049

Triangular Pyramid

Length = n

Surface area	1.9262423061141E+14
Volume	1.1057302050688E+21
Height	9942575.1815532