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

21000745 (number)

21000745 is an odd 8-digits composite number following 21000744 and preceding 21000746. In scientific notation, it is written as 2.1000745 × 10^7. The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors. There are 16800592 positive integers (up to 21000745) that are relatively prime to 21000745.

Interesting facts

21000745 has 4 divisors, whose sum is 25200900
The reverse of 21000745 is 54700012
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1

Name

Name	twenty-one million seven hundred forty-five

Notation

Scientific notation	2.1000745 × 10^7
Engineering notation	2.1000745 × 10^6

Prime Factorization of 21000745

Prime Factorization 5 × 4200149

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21000745	Product of the distinct prime numbers

The prime factorization of 21000745 is 5 × 4200149. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 2, 83, 57, 746, 520, 4865, 7653, 94764, 79246, 492457, 52159, 8654670, 4523681, 17035132, 66578536, 671122251, 804058851, 4336820079, 3498969940

Basic calculations (n = 21000745)

Multiplication

n×y

n×2	42001490
n×3	63002235
n×4	84002980
n×5	105003725

Division

n÷y

n÷2	10500372.5
n÷3	7000248.3333333
n÷3	5250186.25
n÷5	4200149

Exponentiation

n^y

n²	441031290555025
n³	9.261985669967E+21
n⁴	1.9450859924863E+29
n⁵	4.0848254931277E+36

Nth Root

^y√n

²√n	4582.656980399
³√n	275.89568013685
⁴√n	67.69532465687
⁵√n	29.137141316317

Divisors of 21000745

1, 5, 4200149, 21000745

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	-21000744	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 21000745 can be divided by 4 positive divisors. The sum of these divisors (counting 21000745) is 1, the average is 0.25.

Base conversion 21000745

Base	System	Value
2	Binary	1010000000111001000101001
3	Ternary	1110111221121101
4	Quaternary	1100013020221
5	Quinary	20334010440
6	Senary	2030041401
8	Octal	120071051
10	Decimal	21000745
12	Duodecimal	7049261
16	Hexadecimal	1407229
20	Vigesimal	6b51h5
36	Base36	ci4a1

Cryptographic Hash Functions

md5	c4b56dd9b49dbcf2ab6e73c829c4a5b2
sha1	bc38d298a7d4e2fc5848d7347444ac58fc8aaadf
sha256	af6729162ed0b85d6987df1a466b9f44718bd7f10e32f296daaff70f92f89bc5
sha512	5afd9992a48914d8d1887776d01202c01f10cbea2237234dcdb04d1411b2f61fa2c2f6ef56e729a81b04308329e94db82227ba01a5e0e5bff913b01d32ea5d98
ripemd-160	88d6121e0b7252d44cba0b6fa0aa14269242f99b

21000745 as geometric shapes

Circle

Radius = n

Diameter	42001490
Circumference	131951572.42383
Area	1.3855406624109E+15

Sphere

Radius = n

Volume	3.879651485123E+22
Surface area	5.5421626496436E+15
Circumference	131951572.42383

Square

Length = n

Perimeter	84002980
Area	441031290555025
Diagonal	29699538.398939

Cube

Length = n

Surface area	2646187743330150
Volume	9.261985669967E+21
Space diagonal	36374357.336798

Equilateral Triangle

Length = n

Perimeter	63002235
Area	1.9097215074224E+14
Altitude	18187178.668399

Triangular Pyramid

Length = n

Surface area	1.9097215074224E+14
Volume	1.091535479081E+21
Height	9899846.1329797