212902809 is an odd 9-digits composite number following 212902808
and preceding 212902810 . In scientific notation, it is written as 2.12902809 × 10^8.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 112793472 positive integers (up to 212902809) that are relatively prime to 212902809.
212902809 has 16 divisors, whose sum is 239796480
The reverse of 212902809 is 908209212
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 33
Digital Root 6
Name
two hundred twelve million nine hundred two thousand eight hundred nine
Scientific notation
2.12902809 × 10^8
Engineering notation
2.12902809 × 10^6
Prime Factorization
21 × 19 × 47 × 11353
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
212902809
Product of the distinct prime numbers
The prime factorization of 212902809 is 21 × 19 × 47 × 11353.
Since it has a total of 4 prime factors.
10 , 9 , 3 , 66 , 928 , 473 , 2454 , 447 , 5658 , 471 , 45261 , 714112 , 6159326 , 7413016 , 80370957 , 63796437 , 77727861 , 645275558 , 6499881831 , 2359424465
n×2
425805618
n×3
638708427
n×4
851611236
n×5
1064514045
n÷2
106451404.5
n÷3
70967603
n÷3
53225702.25
n÷5
42580561.8
n2
45327606080090481
n3
9.6503746596967E+24
n4
2.0545918729519E+33
n5
4.3742838110002E+41
2 √n
14591.189430612
3 √n
597.1184134757
4 √n
120.79399583842
5 √n
46.305894534681
1 , 19 , 21 , 47 , 399 , 893 , 987 , 11353 , 18753 , 215707 , 238413 , 533591 , 4529847 , 10138229 , 11205411 , 212902809
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
-212902808
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 212902809 can be divided by 16 positive divisors.
The sum of these divisors (counting 212902809) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100101100001010001110011001
3
Ternary
112211121120202020
4
Quaternary
30230022032121
5
Quinary
414000342214
6
Senary
33043125053
8
Octal
1454121631
10
Decimal
212902809
12
Duodecimal
5b373789
16
Hexadecimal
cb0a399
20
Vigesimal
36ach09
36
Base36
3ir8ux
md5
ffa5b8b29eb0d4aad706c51dccc59e45
sha1
f34493b4a0ff355d1910dfcd73bc2fbee507304b
sha256
216e3390022f276178f67390a30dfaaec2d59c23e291e5452919cc74002237c6
sha512
473417b37c65ba7c02f85b530e18bd3285d69761395b32325da14c4ccac08127a87bbc0f70b5a2e4ba39df848f5b48cec543eb28d59faa3b3c9a177c57e0c1c1
ripemd-160
ab238d1cbd7a0c9f47471d359cf9a6c28fe83a1c
Diameter
425805618
Circumference
1337707801.3661
Area
1.4240087426602E+17
Volume
4.0423394847057E+25
Surface area
5.696034970641E+17
Circumference
1337707801.3661
Perimeter
851611236
Area
45327606080090481
Diagonal
301090039.95513
Surface area
271965636480542886
Volume
9.6503746596967E+24
Space diagonal
368758482.26213
Perimeter
638708427
Area
1.9627429179046E+16
Altitude
184379241.13107
Surface area
1.9627429179046E+16
Volume
1.1373075604771E+24
Height
100363346.65171