212156921 is an odd 9-digits composite number following 212156920
and preceding 212156922 . In scientific notation, it is written as 2.12156921 × 10^8.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 212120832 positive integers (up to 212156921) that are relatively prime to 212156921.
212156921 has 4 divisors, whose sum is 212193012
The reverse of 212156921 is 129651212
Previous prime number is 28697
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 29
Digital Root 2
Name
two hundred twelve million one hundred fifty-six thousand nine hundred twenty-one
Scientific notation
2.12156921 × 10^8
Engineering notation
2.12156921 × 10^6
Prime Factorization
28697 × 7393
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
212156921
Product of the distinct prime numbers
The prime factorization of 212156921 is 28697 × 7393.
Since it has a total of 2 prime factors.
7 , 8 , 37 , 44 , 64 , 125 , 4022 , 9463 , 19928 , 82053 , 422753 , 465192 , 7663312 , 3488686 , 1996856 , 22272687 , 106763243 , 26558225 , 2852223230 , 7094798792
n×2
424313842
n×3
636470763
n×4
848627684
n×5
1060784605
n÷2
106078460.5
n÷3
70718973.666667
n÷3
53039230.25
n÷5
42431384.2
n2
45010559128200241
n3
9.5493016371274E+24
n4
2.0259504330332E+33
n5
4.2981940597094E+41
2 √n
14565.607471026
3 √n
596.42027865103
4 √n
120.68805852704
5 √n
46.273403169173
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
-212156920
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 212156921 can be divided by 4 positive divisors.
The sum of these divisors (counting 212156921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100101001010100000111111001
3
Ternary
112210012200120202
4
Quaternary
30221110013321
5
Quinary
413303010141
6
Senary
33015131545
8
Octal
1451240771
10
Decimal
212156921
12
Duodecimal
5b073bb5
16
Hexadecimal
ca541f9
20
Vigesimal
365jc61
36
Base36
3ib9bt
md5
124aecba37156944b9c21cdd863b7c34
sha1
61545ca1667cf57250ea3785649db5563e23173d
sha256
4c342a4abc957be5dd9a93c3b641eaead72375bd6e3a5b4bbc8cf24244ac059b
sha512
9d75176adc63cc05753f93cb360d090355876df4490e904920642fe2f550cc8891e4ad4ada987eeafa07ca359b860bf1edaf2657b146ec10f15dea9cf5f93584
ripemd-160
bc426de0bee78df18e5edacc1213bd91ac72bb37
Diameter
424313842
Circumference
1333021248.8437
Area
1.4140484189112E+17
Volume
4.000002116015E+25
Surface area
5.6561936756449E+17
Circumference
1333021248.8437
Perimeter
848627684
Area
45010559128200241
Diagonal
300035195.02952
Surface area
270063354769201446
Volume
9.5493016371274E+24
Space diagonal
367466566.34938
Perimeter
636470763
Area
1.9490143821781E+16
Altitude
183733283.17469
Surface area
1.9490143821781E+16
Volume
1.1253959905348E+24
Height
100011731.67651