206021921 is an odd 9-digits composite number following 206021920
and preceding 206021922 . In scientific notation, it is written as 2.06021921 × 10^8.
The sum of its digits is 23. It has a total of 5 prime factors and 24 positive divisors.
There are 165110400 positive integers (up to 206021921) that are relatively prime to 206021921.
206021921 has 24 divisors, whose sum is 244629864
The reverse of 206021921 is 129120602
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 23
Digital Root 5
Name
two hundred six million twenty-one thousand nine hundred twenty-one
Scientific notation
2.06021921 × 10^8
Engineering notation
2.06021921 × 10^6
Prime Factorization
133 × 7 × 7 × 101 × 313
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
29431703
Product of the distinct prime numbers
The prime factorization of 206021921 is 133 × 7 × 7 × 101 × 313.
Since it has a total of 5 prime factors.
2 , 8 , 56 , 68 , 465 , 826 , 892 , 1595 , 72361 , 45851 , 559468 , 345835 , 8237792 , 2669344 , 67056349 , 70944357 , 332574109 , 473373075 , 6833637396 , 516349939
n×2
412043842
n×3
618065763
n×4
824087684
n×5
1030109605
n÷2
103010960.5
n÷3
68673973.666667
n÷3
51505480.25
n÷5
41204384.2
n2
42445031932530241
n3
8.7446070156462E+24
n4
1.8015807357535E+33
n5
3.7116512401653E+41
2 √n
14353.463728313
3 √n
590.61500650672
4 √n
119.80594195746
5 √n
46.002632667002
1 , 7 , 49 , 101 , 133 , 313 , 707 , 931 , 2191 , 4949 , 6517 , 13433 , 15337 , 31613 , 41629 , 94031 , 221291 , 291403 , 658217 , 1549037 , 2039821 , 4204529 , 29431703 , 206021921
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-206021920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 206021921 can be divided by 24 positive divisors.
The sum of these divisors (counting 206021921) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1100010001111010010100100001
3
Ternary
112100122222221112
4
Quaternary
30101322110201
5
Quinary
410220200141
6
Senary
32235433105
8
Octal
1421722441
10
Decimal
206021921
12
Duodecimal
58bb5795
16
Hexadecimal
c47a521
20
Vigesimal
347ceg1
36
Base36
3enrj5
md5
0f2d5998dae9291524137a813d97fb01
sha1
2897c4192fc18ab8e3a933c2898a564e94f72691
sha256
2d849264fb52a2c8736706b11e3ef4965f1a79d11acbe1b429a2b36d1c8304ae
sha512
fe01c7e6e34fe79f056ebc0363a9d22da61d25cebb53e0825557b5253289bf11da82856070670117f2652c3d1ea0c0772564c50b0e534aef63cf37e80e2aff26
ripemd-160
a8929b70448736cd34963cb8fae74d904a6534c1
Diameter
412043842
Circumference
1294473906.9841
Area
1.3334500050062E+17
Volume
3.6629324211845E+25
Surface area
5.3338000200248E+17
Circumference
1294473906.9841
Perimeter
824087684
Area
42445031932530241
Diagonal
291358994.82436
Surface area
254670191595181446
Volume
8.7446070156462E+24
Space diagonal
356840434.64494
Perimeter
618065763
Area
1.8379237959006E+16
Altitude
178420217.32247
Surface area
1.8379237959006E+16
Volume
1.0305618199292E+24
Height
97119664.941453