1445 (number)

1445 is an odd 4-digits composite number following 1444 and preceding 1446. In scientific notation, it is written as 1.445 × 10^3. The sum of its digits is 14. It has a total of 3 prime factors and 6 positive divisors. There are 1088 positive integers (up to 1445) that are relatively prime to 1445.

Interesting facts

Basic properties

Name

Name one thousand four hundred forty-five

Notation

Scientific notation 1.445 × 10^3
Engineering notation 1.445 × 10^3

Prime Factorization of 1445

Prime Factorization 5 × 17 × 17

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 85
Product of the distinct prime numbers

The prime factorization of 1445 is 5 × 17 × 17. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 1445)

Multiplication

n×y
n×2 2890
n×3 4335
n×4 5780
n×5 7225

Division

n÷y
n÷2 722.5
n÷3 481.66666666667
n÷3 361.25
n÷5 289

Exponentiation

ny
n2 2088025
n3 3017196125
n4 4359848400625
n5 6299980938903125

Nth Root

y√n
2√n 38.013155617496
3√n 11.30548719328
4√n 6.1654809721137
5√n 4.285224403011

Divisors of 1445

1, 5, 17, 85, 289, 1445

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -1444
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1445 can be divided by 6 positive divisors. The sum of these divisors (counting 1445) is 1, the average is 0.16666666666667.

Base conversion 1445

Base System Value
2 Binary 10110100101
3 Ternary 1222112
4 Quaternary 112211
5 Quinary 21240
6 Senary 10405
8 Octal 2645
10 Decimal 1445
12 Duodecimal a05
16 Hexadecimal 5a5
20 Vigesimal 3c5
36 Base36 145

Cryptographic Hash Functions

md5 b265ce60fe4c5384e622b09eb829b8df
sha1 b8509b02cc4c001875e9fcb20f3c7c0df970b5a0
sha256 146c09db1bc3d53de430b2539d042fc870a84996071db58de8b8cf2099bbebc6
sha512 ba3eda3088ddadf7fc68953b02601a1398a083cdf4b52a32d31f53aa82ac48904a0fc6264e5876719fb8f01ae41bcc38c8581086abb14d607dcd02bf3c75a244
ripemd-160 b76e93b5e4585849f5643463031ae54f76c70445

1445 as geometric shapes

Circle

Radius = n
Diameter 2890
Circumference 9079.2027688745
Area 6559724.0005118

Sphere

Radius = n
Volume 12638401574.319
Surface area 26238896.002047
Circumference 9079.2027688745

Square

Length = n
Perimeter 5780
Area 2088025
Diagonal 2043.5385976291

Cube

Length = n
Surface area 12528150
Volume 3017196125
Space diagonal 2502.813416937

Equilateral Triangle

Length = n
Perimeter 4335
Area 904141.3468685
Altitude 1251.4067084685

Triangular Pyramid

Length = n
Surface area 904141.3468685
Volume 355579973.35955
Height 681.17953254304