201991661 is an odd 9-digits composite number following 201991660
and preceding 201991662 . In scientific notation, it is written as 2.01991661 × 10^8.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 201124512 positive integers (up to 201991661) that are relatively prime to 201991661.
201991661 has 4 divisors, whose sum is 202858812
The reverse of 201991661 is 166199102
Previous prime number is 233
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 35
Digital Root 8
Name
two hundred one million nine hundred ninety-one thousand six hundred sixty-one
Scientific notation
2.01991661 × 10^8
Engineering notation
2.01991661 × 10^6
Prime Factorization
233 × 866917
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
201991661
Product of the distinct prime numbers
The prime factorization of 201991661 is 233 × 866917.
Since it has a total of 2 prime factors.
2 , 5 , 35 , 81 , 635 , 167 , 5104 , 8857 , 66302 , 59132 , 237653 , 271863 , 616814 , 2458356 , 96818199 , 12578735 , 896726005 , 880579731 , 5956861213 , 8586632293
n×2
403983322
n×3
605974983
n×4
807966644
n×5
1009958305
n÷2
100995830.5
n÷3
67330553.666667
n÷3
50497915.25
n÷5
40398332.2
n2
40800631113538921
n3
8.241387248472E+24
n4
1.6646914992631E+33
n5
3.3625380098873E+41
2 √n
14212.377035528
3 √n
586.73835667624
4 √n
119.21567445402
5 √n
45.821224209531
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-201991660
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 201991661 can be divided by 4 positive divisors.
The sum of these divisors (counting 201991661) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100000010100010010111101101
3
Ternary
112002002020110122
4
Quaternary
30002202113231
5
Quinary
403202213121
6
Senary
32013214325
8
Octal
1402422755
10
Decimal
201991661
12
Duodecimal
577913a5
16
Hexadecimal
c0a25ed
20
Vigesimal
3328j31
36
Base36
3c9drh
md5
5313f27f2e22c8892020d9cf7c599cd3
sha1
7080c9fbe51abe1f155e57d0e722e9e5fa79f302
sha256
78c79cb6040a65b6b60e504446b5bf9bcd05c2b01cf348afc6235626799c5309
sha512
2540a5d8d1be5b0cfe0cdd73bb483db8769140d7abec7f892adbc87415d6394214567c13f16c70691e0601ef07ad71d2d9a93a7669f83eeab64e22e1cef71417
ripemd-160
a7dd72c9e40db9602b445129d5426dc758053101
Diameter
403983322
Circumference
1269151036.568
Area
1.2817896296812E+17
Volume
3.4521442180251E+25
Surface area
5.1271585187248E+17
Circumference
1269151036.568
Perimeter
807966644
Area
40800631113538921
Diagonal
285659346.47247
Surface area
244803786681233526
Volume
8.241387248472E+24
Space diagonal
349859819.55723
Perimeter
605974983
Area
1.7667191517381E+16
Altitude
174929909.77861
Surface area
1.7667191517381E+16
Volume
9.7125680162982E+23
Height
95219782.15749