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

21897439 (number)

21897439 is an odd 8-digits composite number following 21897438 and preceding 21897440. In scientific notation, it is written as 2.1897439 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 21191040 positive integers (up to 21897439) that are relatively prime to 21897439.

Interesting facts

21897439 has 4 divisors, whose sum is 22603840
The reverse of 21897439 is 93479812
Previous prime number is 31

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7

Name

Name	twenty-one million eight hundred ninety-seven thousand four hundred thirty-nine

Notation

Scientific notation	2.1897439 × 10^7
Engineering notation	2.1897439 × 10^6

Prime Factorization of 21897439

Prime Factorization 31 × 706369

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21897439	Product of the distinct prime numbers

The prime factorization of 21897439 is 31 × 706369. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 7, 44, 84, 702, 110, 739, 4766, 22637, 30600, 220041, 879022, 3445949, 663604, 68468886, 84736724, 837504534, 407389072, 4865756120, 6030855924

Basic calculations (n = 21897439)

Multiplication

n×y

n×2	43794878
n×3	65692317
n×4	87589756
n×5	109487195

Division

n÷y

n÷2	10948719.5
n÷3	7299146.3333333
n÷3	5474359.75
n÷5	4379487.8

Exponentiation

n^y

n²	479497834758721
n³	1.0499774587261E+22
n⁴	2.299181735383E+29
n⁵	5.0346191800464E+36

Nth Root

^y√n

²√n	4679.469948616
³√n	279.76783050284
⁴√n	68.406651347774
⁵√n	29.381818052929

Divisors of 21897439

1, 31, 706369, 21897439

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	-21897438	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 21897439 can be divided by 4 positive divisors. The sum of these divisors (counting 21897439) is 1, the average is 0.25.

Base conversion 21897439

Base	System	Value
2	Binary	1010011100010000011011111
3	Ternary	1112012111122021
4	Quaternary	1103202003133
5	Quinary	21101204224
6	Senary	2101201011
8	Octal	123420337
10	Decimal	21897439
12	Duodecimal	7400167
16	Hexadecimal	14e20df
20	Vigesimal	6gh3bj
36	Base36	d1c67

Cryptographic Hash Functions

md5	8ef1a9d68e8c79e407f3441dee742011
sha1	a77932ad9c1b7eca69d53b5fa69f98554bf06bdf
sha256	d6ff9cf0311297e30b3ab0c6a28a046a25c3d0f27d80999a8174fd0f5229b3de
sha512	76cbba4afbeaaa700f002e4ab869a2fa2d5f26203e28adf68e254b0894887a83d92cd9bfdc75f0123472afbd3b3557ece209fd18102195af876e1403ff66c9f9
ripemd-160	cc975bbbd0c122da3da9792b490860a1e68c6740

21897439 as geometric shapes

Circle

Radius = n

Diameter	43794878
Circumference	137585666.98966
Area	1.5063868750902E+15

Sphere

Radius = n

Volume	4.3981352943585E+22
Surface area	6.0255475003608E+15
Circumference	137585666.98966

Square

Length = n

Perimeter	87589756
Area	479497834758721
Diagonal	30967655.215038

Cube

Length = n

Surface area	2876987008552326
Volume	1.0499774587261E+22
Space diagonal	37927476.90364

Equilateral Triangle

Length = n

Perimeter	65692317
Area	2.0762865298034E+14
Altitude	18963738.45182

Triangular Pyramid

Length = n

Surface area	2.0762865298034E+14
Volume	1.2374103019304E+21
Height	10322551.738346