201987 is an odd 6-digits composite number following 201986
and preceding 201988 . In scientific notation, it is written as 2.01987 × 10^5.
The sum of its digits is 27. It has a total of 4 prime factors and 8 positive divisors.
There are 134640 positive integers (up to 201987) that are relatively prime to 201987.
201987 has 8 divisors, whose sum is 299280
The reverse of 201987 is 789102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 27
Digital Root 9
Name
two hundred one thousand nine hundred eighty-seven
Scientific notation
2.01987 × 10^5
Engineering notation
2.01987 × 10^3
Prime Factorization
3 × 3 × 3 × 7481
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
22443
Product of the distinct prime numbers
The prime factorization of 201987 is 3 × 3 × 3 × 7481.
Since it has a total of 4 prime factors.
7 , 7 , 86 , 46 , 424 , 180 , 8281 , 4708 , 95596 , 83043 , 334185 , 340453 , 367908 , 8915585 , 21222249 , 48585142 , 713779392 , 379411677 , 1125205412 , 5877494258
n×2
403974
n×3
605961
n×4
807948
n×5
1009935
n÷2
100993.5
n÷3
67329
n÷3
50496.75
n÷5
40397.4
n2
40798748169
n3
8240816746411803
n4
1.6645378521575E+21
n5
3.3621500714373E+26
2 √n
449.42963854201
3 √n
58.67338436046
4 √n
21.199755624582
5 √n
11.50971801814
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
-201986
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 201987 can be divided by 8 positive divisors.
The sum of these divisors (counting 201987) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001010100000011
3
Ternary
101021002000
4
Quaternary
301110003
5
Quinary
22430422
6
Senary
4155043
8
Octal
612403
10
Decimal
201987
12
Duodecimal
98a83
16
Hexadecimal
31503
20
Vigesimal
154j7
36
Base36
4bur
md5
b646ea872d30da48c94cbb27be5a1852
sha1
231b82b8aa15c90e9c58cfb36259662234f5face
sha256
6a692ff05bf9c6c488ae205dc877d89de4423930220dcb1413cd0fc960eb43d6
sha512
f806570f36ec967676c24cb66bddd48819af8424f6910875ebb55e625ddca45b1b1f899fd001c368258c8df88e3c81dd0444a2e8e86d869b9ce00b8e8d5b318b
ripemd-160
ebb72f281aafce9570a2781a5720f2f12937ac62
Diameter
403974
Circumference
1269121.7506413
Area
128173047523.39
Volume
3.4519052466809E+16
Surface area
512692190093.56
Circumference
1269121.7506413
Perimeter
807948
Area
40798748169
Diagonal
285652.75482305
Surface area
244792489014
Volume
8240816746411803
Space diagonal
349851.74646841
Perimeter
605961
Area
17666376178.479
Altitude
174925.87323421
Surface area
17666376178.479
Volume
9.7118956731724E+14
Height
95217.584941018