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

21491836 (number)

21491836 is an even 8-digits composite number following 21491835 and preceding 21491837. In scientific notation, it is written as 2.1491836 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors. There are 10700480 positive integers (up to 21491836) that are relatively prime to 21491836.

Interesting facts

21491836 has 12 divisors, whose sum is 37769760
The reverse of 21491836 is 63819412
Previous prime number is 239

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7

Name

Name	twenty-one million four hundred ninety-one thousand eight hundred thirty-six

Notation

Scientific notation	2.1491836 × 10^7
Engineering notation	2.1491836 × 10^6

Prime Factorization of 21491836

Prime Factorization 2 × 2 × 239 × 22481

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	10745918	Product of the distinct prime numbers

The prime factorization of 21491836 is 2 × 2 × 239 × 22481. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 8, 5, 35, 845, 665, 4576, 2181, 36955, 45735, 558496, 525425, 394871, 315659, 19897895, 90213462, 602646218, 636698861, 6628614903, 9719558535

Basic calculations (n = 21491836)

Multiplication

n×y

n×2	42983672
n×3	64475508
n×4	85967344
n×5	107459180

Division

n÷y

n÷2	10745918
n÷3	7163945.3333333
n÷3	5372959
n÷5	4298367.2

Exponentiation

n^y

n²	461899014650896
n³	9.9270578714387E+21
n⁴	2.1335069973547E+29
n⁵	4.5852982491999E+36

Nth Root

^y√n

²√n	4635.9288174
³√n	278.02968818426
⁴√n	68.087655396555
⁵√n	29.272155501888

Divisors of 21491836

1, 2, 4, 239, 478, 956, 22481, 44962, 89924, 5372959, 10745918, 21491836

12 divisors

τ	Total Divisors	12	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21491835	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.083333333333333	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	12	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21491836 can be divided by 12 positive divisors. The sum of these divisors (counting 21491836) is 1, the average is 0.083333333333333.

Base conversion 21491836

Base	System	Value
2	Binary	1010001111111000001111100
3	Ternary	1111102220020221
4	Quaternary	1101333001330
5	Quinary	21000214321
6	Senary	2044351124
8	Octal	121770174
10	Decimal	21491836
12	Duodecimal	72454a4
16	Hexadecimal	147f07c
20	Vigesimal	6e69bg
36	Base36	csn7g

Cryptographic Hash Functions

md5	a306228d1a8057124da3a5dee5606cb4
sha1	5b997ce86893ea12ff7774f2bc0dd70c42b107a1
sha256	71fc4d0748962b98f215752d4bd841c455f597b77583c5f7b2a13a6d1b6d907f
sha512	6505ae1d491a15240a239209a31a5b07838b8d2d51bad37f84ec05e67efe66c1f14a138c52842892d3d809d0afaaf570a1f2469a2fca5e4d4c355dba15bfe615
ripemd-160	10732803776c36dc4d0ef7ec0da2273341f3d10a

21491836 as geometric shapes

Circle

Radius = n

Diameter	42983672
Circumference	135037188.17951
Area	1.4510985511276E+15

Sphere

Radius = n

Volume	4.158236277423E+22
Surface area	5.8043942045105E+15
Circumference	135037188.17951

Square

Length = n

Perimeter	85967344
Area	461899014650896
Diagonal	30394045.951498

Cube

Length = n

Surface area	2771394087905376
Volume	9.9270578714387E+21
Space diagonal	37224951.899938

Equilateral Triangle

Length = n

Perimeter	64475508
Area	2.0000814033534E+14
Altitude	18612475.949969

Triangular Pyramid

Length = n

Surface area	2.0000814033534E+14
Volume	1.1699149896876E+21
Height	10131348.650499