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

21491889 (number)

21491889 is an odd 8-digits composite number following 21491888 and preceding 21491890. In scientific notation, it is written as 2.1491889 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 14316720 positive integers (up to 21491889) that are relatively prime to 21491889.

Interesting facts

21491889 has 8 divisors, whose sum is 28678272
The reverse of 21491889 is 98819412
Previous prime number is 1973

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6

Name

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

Notation

Scientific notation	2.1491889 × 10^7
Engineering notation	2.1491889 × 10^6

Prime Factorization of 21491889

Prime Factorization 3 × 1973 × 3631

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21491889	Product of the distinct prime numbers

The prime factorization of 21491889 is 3 × 1973 × 3631. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 7, 2, 90, 282, 972, 6740, 8304, 54848, 34516, 535931, 323900, 7371138, 8925238, 21044117, 43635983, 717029517, 223603514, 4425497534, 1513277794

Basic calculations (n = 21491889)

Multiplication

n×y

n×2	42983778
n×3	64475667
n×4	85967556
n×5	107459445

Division

n÷y

n÷2	10745944.5
n÷3	7163963
n÷3	5372972.25
n÷5	4298377.8

Exponentiation

n^y

n²	461901292788321
n³	9.9271313135631E+21
n⁴	2.1335280427952E+29
n⁵	4.5853547874142E+36

Nth Root

^y√n

²√n	4635.9345336189
³√n	278.02991672935
⁴√n	68.087697373453
⁵√n	29.27216993921

Divisors of 21491889

1, 3, 1973, 3631, 5919, 10893, 7163963, 21491889

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	-21491888	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 21491889 can be divided by 8 positive divisors. The sum of these divisors (counting 21491889) is 1, the average is 0.125.

Base conversion 21491889

Base	System	Value
2	Binary	1010001111111000010110001
3	Ternary	1111102220022220
4	Quaternary	1101333002301
5	Quinary	21000220024
6	Senary	2044351253
8	Octal	121770261
10	Decimal	21491889
12	Duodecimal	7245529
16	Hexadecimal	147f0b1
20	Vigesimal	6e69e9
36	Base36	csn8x

Cryptographic Hash Functions

md5	1526728fc0a3300a4725b74ed37c6e5f
sha1	74c38f86f746ebb2081c16310871c6a9659402f6
sha256	5f4ac752e0fe876ad045381540db83a163845e872fdc21eace50fbcdb2ffd152
sha512	503af2fcca83c7e9e179772b89e10730d140c65f393244fee52628b3b9bea6efd3a1ad0d2470db49d871c81cf7ac707858787ef9d65b671859f2f9fb1f4f41a6
ripemd-160	49b3da434a66f9a19f489f0ae59c3e7dc6cd8e2e

21491889 as geometric shapes

Circle

Radius = n

Diameter	42983778
Circumference	135037521.18833
Area	1.4511057081074E+15

Sphere

Radius = n

Volume	4.1582670407881E+22
Surface area	5.8044228324297E+15
Circumference	135037521.18833

Square

Length = n

Perimeter	85967556
Area	461901292788321
Diagonal	30394120.904817

Cube

Length = n

Surface area	2771407756729926
Volume	9.9271313135631E+21
Space diagonal	37225043.698631

Equilateral Triangle

Length = n

Perimeter	64475667
Area	2.0000912679778E+14
Altitude	18612521.849315

Triangular Pyramid

Length = n

Surface area	2.0000912679778E+14
Volume	1.169923644925E+21
Height	10131373.634939