209897907 is an odd 9-digits composite number following 209897906
and preceding 209897908 . In scientific notation, it is written as 2.09897907 × 10^8.
The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors.
There are 139931936 positive integers (up to 209897907) that are relatively prime to 209897907.
209897907 has 4 divisors, whose sum is 279863880
The reverse of 209897907 is 709798902
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 51
Digital Root 6
Name
two hundred nine million eight hundred ninety-seven thousand nine hundred seven
Scientific notation
2.09897907 × 10^8
Engineering notation
2.09897907 × 10^6
Prime Factorization
3 × 69965969
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
209897907
Product of the distinct prime numbers
The prime factorization of 209897907 is 3 × 69965969.
Since it has a total of 2 prime factors.
7 , 7 , 68 , 23 , 441 , 621 , 7769 , 1507 , 8320 , 1632 , 739442 , 317562 , 5289598 , 4712225 , 99280821 , 74936310 , 702316515 , 355088721 , 2253761840 , 2566982350
n×2
419795814
n×3
629693721
n×4
839591628
n×5
1049489535
n÷2
104948953.5
n÷3
69965969
n÷3
52474476.75
n÷5
41979581.4
n2
44057131362980649
n3
9.2474996615137E+24
n4
1.9410308239349E+33
n5
4.0741830736643E+41
2 √n
14487.8537748
3 √n
594.29585699231
4 √n
120.36550076663
5 √n
46.174438357494
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
-209897906
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 209897907 can be divided by 4 positive divisors.
The sum of these divisors (counting 209897907) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100100000101100100110110011
3
Ternary
112121221220210120
4
Quaternary
30200230212303
5
Quinary
412213213112
6
Senary
32454501323
8
Octal
1440544663
10
Decimal
209897907
12
Duodecimal
5a364843
16
Hexadecimal
c82c9b3
20
Vigesimal
35bh4f7
36
Base36
3gyu9f
md5
df738ec1f56f6d07ca121211e94977dd
sha1
ecb9085a54558fb160af3dca1683977efd312fc0
sha256
f84fb221aae695f80c6a985bc19e745a3f8b794aff50801cb9faededf2b33a22
sha512
2dfa41ed7a88d628d749f648defa3fb33d3cbec3ebcc1d162c4c7ebbfd94c2998e69262cf600a2f47d4d8446a8027d7e9a21ca35dba3e529921193558975d55b
ripemd-160
de3d8e52ecdad25c8ba60c7ed92c9a6db55e759e
Diameter
419795814
Circumference
1318827445.2701
Area
1.3840956022818E+17
Volume
3.8735836000914E+25
Surface area
5.5363824091272E+17
Circumference
1318827445.2701
Perimeter
839591628
Area
44057131362980649
Diagonal
296840466.79313
Surface area
264342788177883894
Volume
9.2474996615137E+24
Space diagonal
363553839.32637
Perimeter
629693721
Area
1.9077297489105E+16
Altitude
181776919.66318
Surface area
1.9077297489105E+16
Volume
1.0898282866128E+24
Height
98946822.264376