201218921 is an odd 9-digits composite number following 201218920
and preceding 201218922 . In scientific notation, it is written as 2.01218921 × 10^8.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 199480320 positive integers (up to 201218921) that are relatively prime to 201218921.
201218921 has 8 divisors, whose sum is 202965504
The reverse of 201218921 is 129812102
Previous prime number is 223
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 26
Digital Root 8
Name
two hundred one million two hundred eighteen thousand nine hundred twenty-one
Scientific notation
2.01218921 × 10^8
Engineering notation
2.01218921 × 10^6
Prime Factorization
257 × 223 × 3511
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
201218921
Product of the distinct prime numbers
The prime factorization of 201218921 is 257 × 223 × 3511.
Since it has a total of 3 prime factors.
7 , 1 , 52 , 36 , 772 , 750 , 6302 , 9048 , 48608 , 39954 , 400082 , 874645 , 4227301 , 5927599 , 8954368 , 58502303 , 136874427 , 417447895 , 989241323 , 615827947
n×2
402437842
n×3
603656763
n×4
804875684
n×5
1006094605
n÷2
100609460.5
n÷3
67072973.666667
n÷3
50304730.25
n÷5
40243784.2
n2
40489054168404241
n3
8.1471637920769E+24
n4
1.639363507452E+33
n5
3.2987095609626E+41
2 √n
14185.165525999
3 √n
585.98919109387
4 √n
119.10149254312
5 √n
45.78611167078
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
-201218920
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 201218921 can be divided by 8 positive divisors.
The sum of these divisors (counting 201218921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1011111111100101101101101001
3
Ternary
112000121222110122
4
Quaternary
23333211231221
5
Quinary
403003001141
6
Senary
31544453025
8
Octal
1377455551
10
Decimal
201218921
12
Duodecimal
5747a175
16
Hexadecimal
bfe5b69
20
Vigesimal
32hc761
36
Base36
3bstih
md5
8803e36d445cc25e0be7444dab9738a6
sha1
68d07beaa7ecc1c0a29d1e56a3f32b651f0242dc
sha256
8ef0e2cbfd06da1f658878966cbcfa4d1fa5606992fcc82fa5cf8f535f3ade3c
sha512
c866737b6603c25b5dd3a2903cbba10b41fd9006c2d30a60d4f9f175f2795c70fba572cea165a80578bcc4af1e65f8671bd7dff76d4343fbbd8f764beb955d51
ripemd-160
99fa3a5141f3e7863bb01af17ba2a9223c243223
Diameter
402437842
Circumference
1264295767.9537
Area
1.2720011512626E+17
Volume
3.4126759889042E+25
Surface area
5.0880046050503E+17
Circumference
1264295767.9537
Perimeter
804875684
Area
40489054168404241
Diagonal
284566527.08428
Surface area
242934325010425446
Volume
8.1471637920769E+24
Space diagonal
348521394.61619
Perimeter
603656763
Area
1.7532274742521E+16
Altitude
174260697.30809
Surface area
1.7532274742521E+16
Volume
9.6015246080251E+23
Height
94855509.028093