161728 (number)

161728 is an even 6-digits composite number following 161727 and preceding 161729. In scientific notation, it is written as 1.61728 × 10^5. The sum of its digits is 25. It has a total of 9 prime factors and 42 positive divisors. There are 65664 positive integers (up to 161728) that are relatively prime to 161728.

Interesting facts

Basic properties

Name

Name one hundred sixty-one thousand seven hundred twenty-eight

Notation

Scientific notation 1.61728 × 10^5
Engineering notation 1.61728 × 10^3

Prime Factorization of 161728

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 7 × 19 × 19

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 266
Product of the distinct prime numbers

The prime factorization of 161728 is 2 × 2 × 2 × 2 × 2 × 2 × 7 × 19 × 19. Since it has a total of 9 prime factors.

Most popular turbo-numbers

5, 6, 77, 40, 339, 404, 8738, 9521, 76757, 83870, 466813, 73186, 6227427, 4180850, 59012408, 2808274, 622303296, 21610472, 3594733077, 6545432176

Basic calculations (n = 161728)

Multiplication

n×y
n×2 323456
n×3 485184
n×4 646912
n×5 808640

Division

n÷y
n÷2 80864
n÷3 53909.333333333
n÷3 40432
n÷5 32345.6

Exponentiation

ny
n2 26155945984
n3 4230148832100352
n4 6.8413351031793E+20
n5 1.106435443567E+26

Nth Root

y√n
2√n 402.15419928182
3√n 54.483091014553
4√n 20.053782667662
5√n 11.009232491192

Divisors of 161728

1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 112, 133, 152, 224, 266, 304, 361, 448, 532, 608, 722, 1064, 1216, 1444, 2128, 2527, 2888, 4256, 5054, 5776, 8512, 10108, 11552, 20216, 23104, 40432, 80864, 161728

42 divisors

τ Total Divisors 42
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -161727
Sum of the proper positive divisors of n
A Arithmetic Mean 0.023809523809524
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 42
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161728 can be divided by 42 positive divisors. The sum of these divisors (counting 161728) is 1, the average is 0.023809523809524.

Base conversion 161728

Base System Value
2 Binary 100111011111000000
3 Ternary 22012211221
4 Quaternary 213133000
5 Quinary 20133403
6 Senary 3244424
8 Octal 473700
10 Decimal 161728
12 Duodecimal 79714
16 Hexadecimal 277c0
20 Vigesimal 10468
36 Base36 3gsg

Cryptographic Hash Functions

md5 21d19a999716c915db674278b6113ee3
sha1 6a99fba032b51b2ba03cb5d9d908f7ba902ae65d
sha256 00865aa5e2aac82288d2ea90cdc1d4964512a5e96226e00860bc5bbcf3ea942f
sha512 74fc2a7272194be7906e28bc75649bc17b0829f7c60a2dc58ab7ea38a332b189d7d7243b109b4f77ecdf4a28faa7903ff11e4b3d9803c2e64a39e301d919cf86
ripemd-160 e372ba0c6909ceb46bee9b35a6f6c5968edc9e55

161728 as geometric shapes

Circle

Radius = n
Diameter 323456
Circumference 1016166.9933595
Area 82171327751.026

Sphere

Radius = n
Volume 1.7719205992691E+16
Surface area 328685311004.1
Circumference 1016166.9933595

Square

Length = n
Perimeter 646912
Area 26155945984
Diagonal 228717.93101548

Cube

Length = n
Surface area 156935675904
Volume 4230148832100352
Space diagonal 280121.1130065

Equilateral Triangle

Length = n
Perimeter 485184
Area 11325856841.079
Altitude 140060.55650325

Triangular Pyramid

Length = n
Surface area 11325856841.079
Volume 4.9852782076775E+14
Height 76239.310338492