201991581 is an odd 9-digits composite number following 201991580
and preceding 201991582 . In scientific notation, it is written as 2.01991581 × 10^8.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 122419080 positive integers (up to 201991581) that are relatively prime to 201991581.
201991581 has 8 divisors, whose sum is 244838400
The reverse of 201991581 is 185199102
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 36
Digital Root 9
Name
two hundred one million nine hundred ninety-one thousand five hundred eighty-one
Scientific notation
2.01991581 × 10^8
Engineering notation
2.01991581 × 10^6
Prime Factorization
9 × 11 × 2040319
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
201991581
Product of the distinct prime numbers
The prime factorization of 201991581 is 9 × 11 × 2040319.
Since it has a total of 3 prime factors.
2 , 5 , 31 , 43 , 372 , 664 , 716 , 5892 , 42890 , 16097 , 350482 , 7714 , 8604379 , 3596012 , 61029808 , 79940267 , 458639222 , 331085739 , 4109392399 , 9940515855
n×2
403983162
n×3
605974743
n×4
807966324
n×5
1009957905
n÷2
100995790.5
n÷3
67330527
n÷3
50497895.25
n÷5
40398316.2
n2
40800598794879561
n3
8.2413774563244E+24
n4
1.6646888620207E+33
n5
3.3625313511266E+41
2 √n
14212.374221079
3 √n
586.73827921583
4 √n
119.21566265
5 √n
45.821220579977
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
-201991580
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 201991581 can be divided by 8 positive divisors.
The sum of these divisors (counting 201991581) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100000010100010010110011101
3
Ternary
112002002020100200
4
Quaternary
30002202112131
5
Quinary
403202212311
6
Senary
32013214113
8
Octal
1402422635
10
Decimal
201991581
12
Duodecimal
57791339
16
Hexadecimal
c0a259d
20
Vigesimal
3328ij1
36
Base36
3c9dp9
md5
a11966a74a6866c11227f33ab332e094
sha1
228a0b4a27961fdb262acce92f62d4d7afb80794
sha256
914e698f45f680227bba88b2df6023f2e423bcb878144a02185a9ac06683eda7
sha512
b18b49984b6b24c17ce056e351ed4ac4195f9bb5c5cc473bd3fda64a6990bee295916e5ecbc7039c85909f64cd2b595a3355e7fc4871ed9b718d018acd056dc0
ripemd-160
0e7a5d87a4b6d102d901764bd08b9680f474daec
Diameter
403983162
Circumference
1269150533.9132
Area
1.2817886143606E+17
Volume
3.4521401162999E+25
Surface area
5.1271544574423E+17
Circumference
1269150533.9132
Perimeter
807966324
Area
40800598794879561
Diagonal
285659233.33538
Surface area
244803592769277366
Volume
8.2413774563244E+24
Space diagonal
349859680.99316
Perimeter
605974743
Area
1.7667177522991E+16
Altitude
174929840.49658
Surface area
1.7667177522991E+16
Volume
9.7125564761416E+23
Height
95219744.445128