208891 is an odd 6-digits prime number following 208890
and preceding 208892 . In scientific notation, it is written as 2.08891 × 10^5.
The sum of its digits is 28. It has a total of 1 prime factors and 2 positive divisors.
There are 208890 positive integers (up to 208891) that are relatively prime to 208891.
208891 has 2 divisors, whose sum is 208892
The reverse of 208891 is 198802
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 6
Sum of Digits 28
Digital Root 1
Name
two hundred eight thousand eight hundred ninety-one
Scientific notation
2.08891 × 10^5
Engineering notation
2.08891 × 10^3
Prime Factorization
208891
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
208891
Product of the distinct prime numbers
The prime factorization of 208891 is 208891.
Since it has a total of 1 prime factors.
6 , 8 , 20 , 5 , 510 , 955 , 9962 , 2720 , 86517 , 97602 , 309893 , 273418 , 1635167 , 1763819 , 87871968 , 1363166 , 342137523 , 703919436 , 8394688675 , 727913416
n×2
417782
n×3
626673
n×4
835564
n×5
1044455
n÷2
104445.5
n÷3
69630.333333333
n÷3
52222.75
n÷5
41778.2
n2
43635449881
n3
9115052761091971
n4
1.9040524863173E+21
n5
3.977394279193E+26
2 √n
457.04594954993
3 √n
59.334402904031
4 √n
21.378633014062
5 √n
11.587345213684
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
208892
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
104446
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
457.04704353053
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999904256745
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 208891 can be divided by 2 positive divisors.
The sum of these divisors (counting 208891) is 208892, the average is 104446.
Base
System
Value
2
Binary
110010111111111011
3
Ternary
101121112201
4
Quaternary
302333323
5
Quinary
23141031
6
Senary
4251031
8
Octal
627773
10
Decimal
208891
12
Duodecimal
a0a77
16
Hexadecimal
32ffb
20
Vigesimal
1624b
36
Base36
4h6j
md5
3d97a7c2ee4269d8b37ae51c1d3659e6
sha1
6e654069f5364a4e838a6e0491a33d7994c87ced
sha256
49d0059060e652c25879ef0ca4893a99117f95db49e36277d59924f7e45bc78a
sha512
361cdc3089abee094bbf9f44be230ac5ebd3cde45c7c9d1d7f202bd045cf850cc6271e627ee6b368cf5fa51ac477fd8c83014b37becbd2060fd57c41ce119dc9
ripemd-160
938d86777d9b98b547913a0db207beef09f3a684
Diameter
417782
Circumference
1312500.8620021
Area
137084808782.24
Volume
3.8181043721773E+16
Surface area
548339235128.94
Circumference
1312500.8620021
Perimeter
835564
Area
43635449881
Diagonal
295416.48525768
Surface area
261812699286
Volume
9115052761091971
Space diagonal
361809.82524387
Perimeter
626673
Area
18894704051.254
Altitude
180904.91262194
Surface area
18894704051.254
Volume
1.0742192697069E+15
Height
98472.161752559