181997 is an odd 6-digits prime number following 181996
and preceding 181998 . In scientific notation, it is written as 1.81997 × 10^5.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 181996 positive integers (up to 181997) that are relatively prime to 181997.
181997 has 2 divisors, whose sum is 181998
The reverse of 181997 is 799181
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 6
Sum of Digits 35
Digital Root 8
Name
one hundred eighty-one thousand nine hundred ninety-seven
Scientific notation
1.81997 × 10^5
Engineering notation
1.81997 × 10^3
Prime Factorization
181997
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
181997
Product of the distinct prime numbers
The prime factorization of 181997 is 181997.
Since it has a total of 1 prime factors.
7 , 10 , 69 , 96 , 880 , 804 , 1360 , 7072 , 34497 , 52905 , 463996 , 573589 , 8910868 , 3656096 , 77859108 , 62555045 , 359907744 , 870685143 , 5419687134 , 7038062320
n×2
363994
n×3
545991
n×4
727988
n×5
909985
n÷2
90998.5
n÷3
60665.666666667
n÷3
45499.25
n÷5
36399.4
n2
33122908009
n3
6028269888913973
n4
1.0971270349727E+21
n5
1.9967382898392E+26
2 √n
426.61106408531
3 √n
56.670199702825
4 √n
20.654565211723
5 √n
11.272307976494
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
181998
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
90999
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
426.61223611144
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999890108683
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 181997 can be divided by 2 positive divisors.
The sum of these divisors (counting 181997) is 181998, the average is 90999.
Base
System
Value
2
Binary
101100011011101101
3
Ternary
100020122122
4
Quaternary
230123231
5
Quinary
21310442
6
Senary
3522325
8
Octal
543355
10
Decimal
181997
12
Duodecimal
893a5
16
Hexadecimal
2c6ed
20
Vigesimal
12ejh
36
Base36
3wfh
md5
7e7a12bd639c6fad2f82331425ddcaba
sha1
4fb53401aafe175b974ff4862a490de12a5393f6
sha256
47efe9e4690254f3a08170129932a32df9b5e5add4a3bea11455dd32454be160
sha512
ee5b78ea48e779268ce0e2d4f1ed6d251ef533912a5b5919eac5621b728003ee088dd97d3373e015ea55f122f84a03efe4df021a1fb15aad93ecb8e96c0404a4
ripemd-160
cc152b9cad03dfe7b893b463b248ecd096ae36e0
Diameter
363994
Circumference
1143520.8763508
Area
104058684466.6
Volume
2.5251157862492E+16
Surface area
416234737866.42
Circumference
1143520.8763508
Perimeter
727988
Area
33122908009
Diagonal
257382.62571122
Surface area
198737448054
Volume
6028269888913973
Space diagonal
315228.05082511
Perimeter
545991
Area
14342639891.505
Altitude
157614.02541256
Surface area
14342639891.505
Volume
7.1043841954562E+14
Height
85794.208570405