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

21492989 (number)

21492989 is an odd 8-digits composite number following 21492988 and preceding 21492990. In scientific notation, it is written as 2.1492989 × 10^7. The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors. There are 18422556 positive integers (up to 21492989) that are relatively prime to 21492989.

Interesting facts

21492989 has 4 divisors, whose sum is 24563424
The reverse of 21492989 is 98929412
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8

Name

Name	twenty-one million four hundred ninety-two thousand nine hundred eighty-nine

Notation

Scientific notation	2.1492989 × 10^7
Engineering notation	2.1492989 × 10^6

Prime Factorization of 21492989

Prime Factorization 7 × 3070427

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21492989	Product of the distinct prime numbers

The prime factorization of 21492989 is 7 × 3070427. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 7, 95, 49, 719, 910, 224, 1909, 63440, 82412, 462668, 89113, 672294, 395927, 44375694, 93949835, 351109081, 768599359, 1334709843, 5234988485

Basic calculations (n = 21492989)

Multiplication

n×y

n×2	42985978
n×3	64478967
n×4	85971956
n×5	107464945

Division

n÷y

n÷2	10746494.5
n÷3	7164329.6666667
n÷3	5373247.25
n÷5	4298597.8

Exponentiation

n^y

n²	461948576154121
n³	9.9286556658462E+21
n⁴	2.1339648701082E+29
n⁵	4.5865283479622E+36

Nth Root

^y√n

²√n	4636.053170532
³√n	278.03466003338
⁴√n	68.088568574556
⁵√n	29.272469575298

Divisors of 21492989

1, 7, 3070427, 21492989

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	-21492988	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 21492989 can be divided by 4 positive divisors. The sum of these divisors (counting 21492989) is 1, the average is 0.25.

Base conversion 21492989

Base	System	Value
2	Binary	1010001111111010011111101
3	Ternary	1111102221211122
4	Quaternary	1101333103331
5	Quinary	21000233424
6	Senary	2044400325
8	Octal	121772375
10	Decimal	21492989
12	Duodecimal	72460a5
16	Hexadecimal	147f4fd
20	Vigesimal	6e6c99
36	Base36	cso3h

Cryptographic Hash Functions

md5	e9ca02d60e62de1052348805661157c3
sha1	3289a908844d9be3e0572b7615f8ba07111de41f
sha256	4d24cab1fd28b5e3d9615dbc6f0d40231a5cd4bcfb3b2a562002f960a8f620a9
sha512	d3932d10d11d9a71ba0778ed4b2a7a8a4870a650deb7091311fc2d17d9e8c766d28c327d43ccf584295916f683d39578efeb6f55e0a72247c62f9f8c2f7217c5
ripemd-160	73755812a078d3a6c8e889a3a58d217e884473bf

21492989 as geometric shapes

Circle

Radius = n

Diameter	42985978
Circumference	135044432.69217
Area	1.4512542531821E+15

Sphere

Radius = n

Volume	4.1589055599793E+22
Surface area	5.8050170127282E+15
Circumference	135044432.69217

Square

Length = n

Perimeter	85971956
Area	461948576154121
Diagonal	30395676.539736

Cube

Length = n

Surface area	2771691456924726
Volume	9.9286556658462E+21
Space diagonal	37226948.954519

Equilateral Triangle

Length = n

Perimeter	64478967
Area	2.0002960109576E+14
Altitude	18613474.477259

Triangular Pyramid

Length = n

Surface area	2.0002960109576E+14
Volume	1.1701032915643E+21
Height	10131892.179912