205121031 is an odd 9-digits composite number following 205121030
and preceding 205121032 . In scientific notation, it is written as 2.05121031 × 10^8.
The sum of its digits is 15. It has a total of 5 prime factors and 32 positive divisors.
There are 123594240 positive integers (up to 205121031) that are relatively prime to 205121031.
205121031 has 32 divisors, whose sum is 301190400
The reverse of 205121031 is 130121502
Previous prime number is 331
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 15
Digital Root 6
Name
two hundred five million one hundred twenty-one thousand thirty-one
Scientific notation
2.05121031 × 10^8
Engineering notation
2.05121031 × 10^6
Prime Factorization
3 × 29 × 17 × 331 × 419
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
205121031
Product of the distinct prime numbers
The prime factorization of 205121031 is 3 × 29 × 17 × 331 × 419.
Since it has a total of 5 prime factors.
5 , 5 , 45 , 95 , 776 , 8 , 9674 , 3049 , 87072 , 99516 , 39254 , 373904 , 2299492 , 1880172 , 37461455 , 86247930 , 115023314 , 625849893 , 8511582112 , 2942428231
n×2
410242062
n×3
615363093
n×4
820484124
n×5
1025605155
n÷2
102560515.5
n÷3
68373677
n÷3
51280257.75
n÷5
41024206.2
n2
42074637358502961
n3
8.6303929939272E+24
n4
1.7702751088495E+33
n5
3.6312065548085E+41
2 √n
14322.047025478
3 √n
589.75287074223
4 √n
119.674755172
5 √n
45.962330167709
1 , 3 , 17 , 29 , 51 , 87 , 331 , 419 , 493 , 993 , 1257 , 1479 , 5627 , 7123 , 9599 , 12151 , 16881 , 21369 , 28797 , 36453 , 138689 , 163183 , 206567 , 416067 , 489549 , 619701 , 2357713 , 4021981 , 7073139 , 12065943 , 68373677 , 205121031
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-205121030
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 205121031 can be divided by 32 positive divisors.
The sum of these divisors (counting 205121031) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1100001110011110011000000111
3
Ternary
112021222020011020
4
Quaternary
30032132120013
5
Quinary
410002333111
6
Senary
32204242223
8
Octal
1416363007
10
Decimal
205121031
12
Duodecimal
58840373
16
Hexadecimal
c39e607
20
Vigesimal
34202bb
36
Base36
3e4gef
md5
e9bb7db6233939e93cbd5e72458f34d7
sha1
f559c27e3eb13aca0e3190ee0732a2ea797ea740
sha256
d962c0d4850aa2e2c21d6f5db0097bbca61cb63ab6048644d9820fe937b1443b
sha512
b47ae6dabb25464c4ed5a2ca6348a449db56c5982b73cb837826d034c37a7de73f336889492b9ee58c1310b740f8a89bf1f7b44c7ebc0e7947ec3374f51ace32
ripemd-160
36af147bb3456501d37e8f817ba347463cc4d24f
Diameter
410242062
Circumference
1288813448.1727
Area
1.3218137162793E+17
Volume
3.615090563642E+25
Surface area
5.2872548651171E+17
Circumference
1288813448.1727
Perimeter
820484124
Area
42074637358502961
Diagonal
290084943.96815
Surface area
252447824151017766
Volume
8.6303929939272E+24
Space diagonal
355280047.39291
Perimeter
615363093
Area
1.8218852403741E+16
Altitude
177640023.69646
Surface area
1.8218852403741E+16
Volume
1.0171015683851E+24
Height
96694981.322717