161864 is an even 6-digits composite number following 161863
and preceding 161865 . In scientific notation, it is written as 1.61864 × 10^5.
The sum of its digits is 26. It has a total of 4 prime factors and 8 positive divisors.
There are 80928 positive integers (up to 161864) that are relatively prime to 161864.
161864 has 8 divisors, whose sum is 303510
The reverse of 161864 is 468161
Previous prime number is 2
Is Prime? no
Number parity even
Number length 6
Sum of Digits 26
Digital Root 8
Name
one hundred sixty-one thousand eight hundred sixty-four
Scientific notation
1.61864 × 10^5
Engineering notation
1.61864 × 10^3
Prime Factorization
2 × 2 × 2 × 20233
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
40466
Product of the distinct prime numbers
The prime factorization of 161864 is 2 × 2 × 2 × 20233.
Since it has a total of 4 prime factors.
7 , 1 , 28 , 24 , 284 , 641 , 636 , 8353 , 99884 , 20593 , 280420 , 473097 , 270450 , 203377 , 27769715 , 64306491 , 287585067 , 434231693 , 5679020658 , 5025976164
n×2
323728
n×3
485592
n×4
647456
n×5
809320
n÷2
80932
n÷3
53954.666666667
n÷3
40466
n÷5
32372.8
n2
26199954496
n3
4240829434540544
n4
6.8643761559247E+20
n5
1.1110953821026E+26
2 √n
402.32325311868
3 √n
54.498358674583
4 √n
20.057997235983
5 √n
11.011083441238
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
-161863
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 161864 can be divided by 8 positive divisors.
The sum of these divisors (counting 161864) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111100001001000
3
Ternary
22020000222
4
Quaternary
213201020
5
Quinary
20134424
6
Senary
3245212
8
Octal
474110
10
Decimal
161864
12
Duodecimal
79808
16
Hexadecimal
27848
20
Vigesimal
104d4
36
Base36
3gw8
md5
1fc295ba00faa42cac2b4f387af7ff3a
sha1
29e5731d6558a666d6a588767a63a798676493b0
sha256
f5a25854fbd62b5174010886dcc13e1da583538478ed86fc82374c137b26c952
sha512
2d12aff5c07b387a818dec8efae15e7d3441e176e16c37a1932ab7242a4da4bed7b973d8b35874fe8ba0e200f255853fc4213c2ca8c0507990e0617836fd6610
ripemd-160
4b07afee14b14dada096f13d4d9ebd7431bdfe70
Diameter
323728
Circumference
1017021.5065613
Area
82309584569.02
Volume
1.7763944795573E+16
Surface area
329238338276.08
Circumference
1017021.5065613
Perimeter
647456
Area
26199954496
Diagonal
228910.26405996
Surface area
157199726976
Volume
4240829434540544
Space diagonal
280356.67191633
Perimeter
485592
Area
11344913085.766
Altitude
140178.33595816
Surface area
11344913085.766
Volume
4.9978654183652E+14
Height
76303.42135332