209957891 is an odd 9-digits composite number following 209957890
and preceding 209957892 . In scientific notation, it is written as 2.09957891 × 10^8.
The sum of its digits is 50. It has a total of 4 prime factors and 16 positive divisors.
There are 174432000 positive integers (up to 209957891) that are relatively prime to 209957891.
209957891 has 16 divisors, whose sum is 249123168
The reverse of 209957891 is 198759902
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 50
Digital Root 5
Name
two hundred nine million nine hundred fifty-seven thousand eight hundred ninety-one
Scientific notation
2.09957891 × 10^8
Engineering notation
2.09957891 × 10^6
Prime Factorization
13 × 11 × 101 × 14537
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
209957891
Product of the distinct prime numbers
The prime factorization of 209957891 is 13 × 11 × 101 × 14537.
Since it has a total of 4 prime factors.
1 , 9 , 76 , 73 , 121 , 284 , 2366 , 885 , 23742 , 72866 , 128702 , 525710 , 7776510 , 8461282 , 27422324 , 84263866 , 587435619 , 3736003 , 2873762311 , 4614507381
n×2
419915782
n×3
629873673
n×4
839831564
n×5
1049789455
n÷2
104978945.5
n÷3
69985963.666667
n÷3
52489472.75
n÷5
41991578.2
n2
44082315993167881
n3
9.2554300963211E+24
n4
1.9432505833215E+33
n5
4.080007941587E+41
2 √n
14489.923774817
3 √n
594.35246363491
4 √n
120.37409926897
5 √n
46.177077174617
1 , 11 , 13 , 101 , 143 , 1111 , 1313 , 14443 , 14537 , 159907 , 188981 , 1468237 , 2078791 , 16150607 , 19087081 , 209957891
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
-209957890
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 209957891 can be divided by 16 positive divisors.
The sum of these divisors (counting 209957891) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100100000111011010000000011
3
Ternary
112122001222002012
4
Quaternary
30200323100003
5
Quinary
412222123031
6
Senary
32500043135
8
Octal
1440732003
10
Decimal
209957891
12
Duodecimal
5a3934ab
16
Hexadecimal
c83b403
20
Vigesimal
35c4eeb
36
Base36
3h04jn
md5
00df3c9b0e494a04dfd3d49851b013ae
sha1
8e494f245b7923eca4caa6a9fd5d477234ad498e
sha256
f237d81aa8d59c99fdde126e50ebac6d0c86f0973d01794de54cc0c9d4b69c14
sha512
d20a7128cc23f5dbe1728e7255a1e9677703ffc78754757bec9f2ab68821ab044b3a7c3894edfd8c27617ee9e5f5ae02ddcdf73a77116b9f06a6b7b9dda39c64
ripemd-160
c62101a6b7f7d1a1b6d99b7edb2501f254112ed0
Diameter
419915782
Circumference
1319204335.8576
Area
1.3848868007736E+17
Volume
3.8769054928555E+25
Surface area
5.5395472030944E+17
Circumference
1319204335.8576
Perimeter
839831564
Area
44082315993167881
Diagonal
296925296.97945
Surface area
264493895959007286
Volume
9.2554300963211E+24
Space diagonal
363657734.66201
Perimeter
629873673
Area
1.9088202753868E+16
Altitude
181828867.331
Surface area
1.9088202753868E+16
Volume
1.0907628973178E+24
Height
98975098.993151