209993721 is an odd 9-digits composite number following 209993720
and preceding 209993722 . In scientific notation, it is written as 2.09993721 × 10^8.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 116125200 positive integers (up to 209993721) that are relatively prime to 209993721.
209993721 has 8 divisors, whose sum is 227090688
The reverse of 209993721 is 127399902
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
two hundred nine million nine hundred ninety-three thousand seven hundred twenty-one
Scientific notation
2.09993721 × 10^8
Engineering notation
2.09993721 × 10^6
Prime Factorization
21 × 31 × 322571
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
209993721
Product of the distinct prime numbers
The prime factorization of 209993721 is 21 × 31 × 322571.
Since it has a total of 3 prime factors.
4 , 3 , 33 , 36 , 719 , 497 , 6524 , 8688 , 11155 , 27234 , 651384 , 302778 , 5516534 , 8295114 , 14733544 , 9738485 , 178103778 , 740147688 , 5880668231 , 6710931563
n×2
419987442
n×3
629981163
n×4
839974884
n×5
1049968605
n÷2
104996860.5
n÷3
69997907
n÷3
52498430.25
n÷5
41998744.2
n2
44097362859425841
n3
9.260169313138E+24
n4
1.9445774111559E+33
n5
4.0834904634117E+41
2 √n
14491.160098488
3 √n
594.38627110839
4 √n
120.37923449868
5 √n
46.178653120859
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
-209993720
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 209993721 can be divided by 8 positive divisors.
The sum of these divisors (counting 209993721) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100100001000011111111111001
3
Ternary
112122010210020020
4
Quaternary
30201003333321
5
Quinary
412224244341
6
Senary
32500521053
8
Octal
1441037771
10
Decimal
209993721
12
Duodecimal
5a3b0189
16
Hexadecimal
c843ff9
20
Vigesimal
35c9461
36
Base36
3h0w6x
md5
e8c5f7a4a1faf0ebcce67db9551b4d4e
sha1
36567c767a11ba558dfe172f23eec73e1339e531
sha256
7fd30179449e66b4952e1fe901683fc46779354278c150abe607b9019d80de86
sha512
6df28a08c1413fe9ccc50a4400ed609f18bccdb32d0c43503b793a288fbd89019caf7abb285874787ea09a6e6ca89c237265cb62482141f6f90619de1e127222
ripemd-160
c3d512c4f685be5049bc2d3c1aaf28413fca5319
Diameter
419987442
Circumference
1319429462.3872
Area
1.3853595120186E+17
Volume
3.8788906513536E+25
Surface area
5.5414380480742E+17
Circumference
1319429462.3872
Perimeter
839974884
Area
44097362859425841
Diagonal
296975968.25139
Surface area
264584177156555046
Volume
9.260169313138E+24
Space diagonal
363719794.04244
Perimeter
629981163
Area
1.9094718238082E+16
Altitude
181859897.02122
Surface area
1.9094718238082E+16
Volume
1.0913214193759E+24
Height
98991989.417131