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

21491745 (number)

21491745 is an odd 8-digits composite number following 21491744 and preceding 21491746. In scientific notation, it is written as 2.1491745 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 10420160 positive integers (up to 21491745) that are relatively prime to 21491745.

Interesting facts

21491745 has 8 divisors, whose sum is 25008768
The reverse of 21491745 is 54719412
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

Name	twenty-one million four hundred ninety-one thousand seven hundred forty-five

Notation

Scientific notation	2.1491745 × 10^7
Engineering notation	2.1491745 × 10^6

Prime Factorization of 21491745

Prime Factorization 15 × 11 × 130253

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21491745	Product of the distinct prime numbers

The prime factorization of 21491745 is 15 × 11 × 130253. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 10, 74, 73, 833, 42, 1275, 9965, 12141, 51067, 553705, 339660, 1309749, 5850492, 78049196, 1916619, 607371489, 592645141, 3265607711, 6122335656

Basic calculations (n = 21491745)

Multiplication

n×y

n×2	42983490
n×3	64475235
n×4	85966980
n×5	107458725

Division

n÷y

n÷2	10745872.5
n÷3	7163915
n÷3	5372936.25
n÷5	4298349

Exponentiation

n^y

n²	461895103145025
n³	9.9269317735416E+21
n⁴	2.1334708630935E+29
n⁵	4.5852011754536E+36

Nth Root

^y√n

²√n	4635.9190027437
³√n	278.02929577576
⁴√n	68.087583322833
⁵√n	29.272130713213

Divisors of 21491745

1, 11, 15, 165, 130253, 1432783, 1953795, 21491745

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	-21491744	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 21491745 can be divided by 8 positive divisors. The sum of these divisors (counting 21491745) is 1, the average is 0.125.

Base conversion 21491745

Base	System	Value
2	Binary	1010001111111000000100001
3	Ternary	1111102220010120
4	Quaternary	1101333000201
5	Quinary	21000213440
6	Senary	2044350453
8	Octal	121770041
10	Decimal	21491745
12	Duodecimal	7245429
16	Hexadecimal	147f021
20	Vigesimal	6e6975
36	Base36	csn4x

Cryptographic Hash Functions

md5	9ed986b3f1bc44d32f8b00d8b1801ff9
sha1	f88c7e357c8037758562d8e9f4c7fdbfa6855ff2
sha256	889a78807e6a3d0f33f0a7687897c62415ebda3b48ef577596cd31a100ea5803
sha512	af7f8647b0a046d11687c47852ce6dc25111c3c8dba3186f146177ad73fb3a1a670b34ef550ab45556bf3805de26f1b1560ac12d95af4b891fc84731a4569ef8
ripemd-160	192a07d580097dcf515c593489b54d13b0038f47

21491745 as geometric shapes

Circle

Radius = n

Diameter	42983490
Circumference	135036616.40965
Area	1.4510862627695E+15

Sphere

Radius = n

Volume	4.1581834576594E+22
Surface area	5.804345051078E+15
Circumference	135036616.40965

Square

Length = n

Perimeter	85966980
Area	461895103145025
Diagonal	30393917.258064

Cube

Length = n

Surface area	2771370618870150
Volume	9.9269317735416E+21
Space diagonal	37224794.283314

Equilateral Triangle

Length = n

Perimeter	64475235
Area	2.0000644660361E+14
Altitude	18612397.141657

Triangular Pyramid

Length = n

Surface area	2.0000644660361E+14
Volume	1.1699001289079E+21
Height	10131305.752688