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

21491371 (number)

21491371 is an odd 8-digits composite number following 21491370 and preceding 21491372. In scientific notation, it is written as 2.1491371 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 19537600 positive integers (up to 21491371) that are relatively prime to 21491371.

Interesting facts

21491371 has 4 divisors, whose sum is 23445144
The reverse of 21491371 is 17319412
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	twenty-one million four hundred ninety-one thousand three hundred seventy-one

Notation

Scientific notation	2.1491371 × 10^7
Engineering notation	2.1491371 × 10^6

Prime Factorization of 21491371

Prime Factorization 11 × 1953761

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21491371	Product of the distinct prime numbers

The prime factorization of 21491371 is 11 × 1953761. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 2, 22, 35, 901, 251, 5302, 313, 10196, 84147, 173860, 492551, 7464002, 4905687, 45421444, 38050685, 249534825, 79258851, 389143489, 6089160842

Basic calculations (n = 21491371)

Multiplication

n×y

n×2	42982742
n×3	64474113
n×4	85965484
n×5	107456855

Division

n÷y

n÷2	10745685.5
n÷3	7163790.3333333
n÷3	5372842.75
n÷5	4298274.2

Exponentiation

n^y

n²	461879027459641
n³	9.9264135362543E+21
n⁴	2.1333223600706E+29
n⁵	4.5848022302874E+36

Nth Root

^y√n

²√n	4635.8786653665
³√n	278.02768300831
⁴√n	68.087287105351
⁵√n	29.272028833603

Divisors of 21491371

1, 11, 1953761, 21491371

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	-21491370	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 21491371 can be divided by 4 positive divisors. The sum of these divisors (counting 21491371) is 1, the average is 0.25.

Base conversion 21491371

Base	System	Value
2	Binary	1010001111110111010101011
3	Ternary	1111102212121201
4	Quaternary	1101332322223
5	Quinary	21000210441
6	Senary	2044345031
8	Octal	121767253
10	Decimal	21491371
12	Duodecimal	7245177
16	Hexadecimal	147eeab
20	Vigesimal	6e688b
36	Base36	csmuj

Cryptographic Hash Functions

md5	4e7a2e06faa5cf069ac6b2c351623a95
sha1	c5f89efbf2697c1546f0a1d8c00b6f269bf2e935
sha256	f461291f3d85e9a2cf3bd9ee5570891a779bf3b6a422f91c06f017ddd058ce6f
sha512	d230f29870fbc562b7f2a37325fd91c26c8ecb77bc7aea3dc826db2f9c17e5f29918d45b1b89d8b7ea00ed89bd427b3d920d013133bb3ef4dd93cc924c140e98
ripemd-160	b58240832b61b5ba1f0221a6fb514fa69a2de492

21491371 as geometric shapes

Circle

Radius = n

Diameter	42982742
Circumference	135034266.49835
Area	1.4510357595144E+15

Sphere

Radius = n

Volume	4.1579663789321E+22
Surface area	5.8041430380576E+15
Circumference	135034266.49835

Square

Length = n

Perimeter	85965484
Area	461879027459641
Diagonal	30393388.342192

Cube

Length = n

Surface area	2771274164757846
Volume	9.9264135362543E+21
Space diagonal	37224146.496312

Equilateral Triangle

Length = n

Perimeter	64474113
Area	1.9999948562765E+14
Altitude	18612073.248156

Triangular Pyramid

Length = n

Surface area	1.9999948562765E+14
Volume	1.1698390540579E+21
Height	10131129.447397