201985 is an odd 6-digits composite number following 201984
and preceding 201986 . In scientific notation, it is written as 2.01985 × 10^5.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 133056 positive integers (up to 201985) that are relatively prime to 201985.
201985 has 16 divisors, whose sum is 288000
The reverse of 201985 is 589102
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 25
Digital Root 7
Name
two hundred one thousand nine hundred eighty-five
Scientific notation
2.01985 × 10^5
Engineering notation
2.01985 × 10^3
Prime Factorization
5 × 7 × 29 × 199
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
201985
Product of the distinct prime numbers
The prime factorization of 201985 is 5 × 7 × 29 × 199.
Since it has a total of 4 prime factors.
8 , 1 , 43 , 31 , 714 , 145 , 7112 , 7906 , 54574 , 69746 , 746788 , 311829 , 2387523 , 77457 , 1030635 , 26591006 , 739200090 , 6198461 , 6940168065 , 4628125580
n×2
403970
n×3
605955
n×4
807940
n×5
1009925
n÷2
100992.5
n÷3
67328.333333333
n÷3
50496.25
n÷5
40397
n2
40797940225
n3
8240571956346625
n4
1.6644719266027E+21
n5
3.3619836209484E+26
2 √n
449.4274134941
3 √n
58.673190705825
4 √n
21.199703146367
5 √n
11.509695225062
1 , 5 , 7 , 29 , 35 , 145 , 199 , 203 , 995 , 1015 , 1393 , 5771 , 6965 , 28855 , 40397 , 201985
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-201984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 201985 can be divided by 16 positive divisors.
The sum of these divisors (counting 201985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110001010100000001
3
Ternary
101021001221
4
Quaternary
301110001
5
Quinary
22430420
6
Senary
4155041
8
Octal
612401
10
Decimal
201985
12
Duodecimal
98a81
16
Hexadecimal
31501
20
Vigesimal
154j5
36
Base36
4bup
md5
4cd642a4b60792d32105782f878def56
sha1
e0fa01afa12f3ccb894f33b2d4839363ee2019f0
sha256
adb2e3216d5d5de584752eee1ee60cda8f6264e7b94c2a5556bce26dc0300c05
sha512
501b2a37b145efe0722a86bab91d1e08b6a1037c8a5c6b59b747a1948c046fae419ba127527511cdf63be62cbe972f66f0fcbf9575763d7c09bb706672238481
ripemd-160
d067bc41956450ce3dd34a2bde88313f5b448750
Diameter
403970
Circumference
1269109.1842707
Area
128170509292.46
Volume
3.4518027092582E+16
Surface area
512682037169.82
Circumference
1269109.1842707
Perimeter
807940
Area
40797940225
Diagonal
285649.92639593
Surface area
244787641350
Volume
8240571956346625
Space diagonal
349848.2823668
Perimeter
605955
Area
17666026328.465
Altitude
174924.1411834
Surface area
17666026328.465
Volume
9.711607185314E+14
Height
95216.642131977