165645 (number)

165645 is an odd 6-digits composite number following 165644 and preceding 165646. In scientific notation, it is written as 1.65645 × 10^5. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 88128 positive integers (up to 165645) that are relatively prime to 165645.

Interesting facts

Basic properties

Name

Name one hundred sixty-five thousand six hundred forty-five

Notation

Scientific notation 1.65645 × 10^5
Engineering notation 1.65645 × 10^3

Prime Factorization of 165645

Prime Factorization 5 × 3 × 27 × 409

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 165645
Product of the distinct prime numbers

The prime factorization of 165645 is 5 × 3 × 27 × 409. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 165645)

Multiplication

n×y
n×2 331290
n×3 496935
n×4 662580
n×5 828225

Division

n÷y
n÷2 82822.5
n÷3 55215
n÷3 41411.25
n÷5 33129

Exponentiation

ny
n2 27438266025
n3 4545011575711125
n4 7.5285844245867E+20
n5 1.2470723670107E+26

Nth Root

y√n
2√n 406.99508596542
3√n 54.919441291614
4√n 20.174119211639
5√n 11.062051250999

Divisors of 165645

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -165644
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 165645 can be divided by 16 positive divisors. The sum of these divisors (counting 165645) is 1, the average is 0.0625.

Base conversion 165645

Base System Value
2 Binary 101000011100001101
3 Ternary 22102020000
4 Quaternary 220130031
5 Quinary 20300040
6 Senary 3314513
8 Octal 503415
10 Decimal 165645
12 Duodecimal 7ba39
16 Hexadecimal 2870d
20 Vigesimal 10e25
36 Base36 3jt9

Cryptographic Hash Functions

md5 f799c6ae4a67d621d2b9051f1b4a0959
sha1 223941fadf236a99ba30dd8ccbe9984c6a691fab
sha256 b5d2b08b8d7020dc6f2681b31a858b0e5797539cdc3bd4e3dc8640ae4a47ac2c
sha512 a2c2ea87805259df314a0c96cec0923b80295b80bd2155ee458e12446d13f8eeddfecce36e39cf8f5837a1d5cfebc1570a1f5d1377fe88df57e15d2c7a1bdeae
ripemd-160 d80ab0f12d4e7ca2ec3d20cf06b7bfecaece5804

165645 as geometric shapes

Circle

Radius = n
Diameter 331290
Circumference 1040778.2302078
Area 86199854971.382

Sphere

Radius = n
Volume 1.903809996898E+16
Surface area 344799419885.53
Circumference 1040778.2302078

Square

Length = n
Perimeter 662580
Area 27438266025
Diagonal 234257.40553929

Cube

Length = n
Surface area 164629596150
Volume 4545011575711125
Space diagonal 286905.55601975

Equilateral Triangle

Length = n
Perimeter 496935
Area 11881117706.723
Altitude 143452.77800987

Triangular Pyramid

Length = n
Surface area 11881117706.723
Volume 5.3563475095945E+14
Height 78085.80184643