205127721 is an odd 9-digits composite number following 205127720
and preceding 205127722 . In scientific notation, it is written as 2.05127721 × 10^8.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 135745632 positive integers (up to 205127721) that are relatively prime to 205127721.
205127721 has 16 divisors, whose sum is 238100800
The reverse of 205127721 is 127721502
Previous prime number is 139
Is Prime? no Number parity odd Number length 9 Sum of Digits 27 Digital Root 9
Name
two hundred five million one hundred twenty-seven thousand seven hundred twenty-one
Scientific notation
2.05127721 × 10^8
Engineering notation
2.05127721 × 10^6
Prime Factorization
9 × 27 × 139 × 6073
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
205127721 Product of the distinct prime numbers
The prime factorization of 205127721 is 9 × 27 × 139 × 6073.
Since it has a total of 4 prime factors.
9 , 8 , 71 , 64 , 980 , 527 , 6078 , 3238 , 63885 , 69081 , 970314 , 291230 , 272745 , 5511020 , 26095233 , 65693832 , 865676286 , 763207354 , 1949421247 , 4441883632
n×2
410255442
n×3
615383163
n×4
820510884
n×5
1025638605
n÷2
102563860.5
n÷3
68375907
n÷3
51281930.25
n÷5
41025544.2
n2
42077381922653841
n3
8.6312374594406E+24
n4
1.7705060694649E+33
n5
3.63179875046E+41
2 √n14322.280579573
3 √n589.75928224766
4 √n119.67573095483
5 √n45.962629975073
1 , 9 , 27 , 139 , 243 , 1251 , 3753 , 6073 , 33777 , 54657 , 163971 , 844147 , 1475739 , 7597323 , 22791969 , 205127721
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
-205127720 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 205127721 can be divided by 16 positive divisors.
The sum of these divisors (counting 205127721) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100001110100000000000101001
3
Ternary
112021222120100000
4
Quaternary
30032200000221
5
Quinary
410003041341
6
Senary
32204333213
8
Octal
1416400051
10
Decimal
205127721
12
Duodecimal
58844209
16
Hexadecimal
c3a0029
20
Vigesimal
3420j61
36
Base36
3e4lk9
md5
86d95fb4dfd37adbf4407b3572069c8a
sha1
21f99dfeebbdfcf6822d444fe07b35f5eb136a6b
sha256
9b148afdb7f1d225987983d05cbbcbe3b5c57f6c66d9f62e45dcda858e846444
sha512
11bc69f1beda2103f06437da5668e0d44d6c87d3e8fdf16523aad03518eab6102294567be594588889caacaa3b93bf479f4cce409e0341485afd2f38b236dc2f
ripemd-160
53f4010b53dfac62d9491a67685f5e1dbce1d12c
Diameter
410255442
Circumference
1288855482.6824
Area
1.321899939305E+17
Volume
3.615444292529E+25
Surface area
5.2875997572201E+17
Circumference
1288855482.6824
Perimeter
820510884
Area
42077381922653841
Diagonal
290094405.05688
Surface area
252464291535923046
Volume
8.6312374594406E+24
Space diagonal
355291634.81281
Perimeter
615383163
Area
1.8220040834879E+16
Altitude
177645817.40641
Surface area
1.8220040834879E+16
Volume
1.0172010896003E+24
Height
96698135.018961