205162021 is an odd 9-digits composite number following 205162020
and preceding 205162022 . In scientific notation, it is written as 2.05162021 × 10^8.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 203664352 positive integers (up to 205162021) that are relatively prime to 205162021.
205162021 has 4 divisors, whose sum is 206659692
The reverse of 205162021 is 120261502
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 19
Digital Root 1
Name
two hundred five million one hundred sixty-two thousand twenty-one
Scientific notation
2.05162021 × 10^8
Engineering notation
2.05162021 × 10^6
Prime Factorization
137 × 1497533
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
205162021
Product of the distinct prime numbers
The prime factorization of 205162021 is 137 × 1497533.
Since it has a total of 2 prime factors.
5 , 4 , 75 , 12 , 490 , 181 , 4708 , 4439 , 87575 , 38325 , 45544 , 806265 , 2731844 , 7319602 , 83893989 , 50109372 , 148321819 , 79607180 , 1502079179 , 4669224990
n×2
410324042
n×3
615486063
n×4
820648084
n×5
1025810105
n÷2
102581010.5
n÷3
68387340.333333
n÷3
51290505.25
n÷5
41032404.2
n2
42091454860804441
n3
8.6355679460729E+24
n4
1.7716905722991E+33
n5
3.6348361839954E+41
2 √n
14323.477964517
3 √n
589.79215220121
4 √n
119.68073347251
5 √n
45.964166981154
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-205162020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 205162021 can be divided by 4 positive divisors.
The sum of these divisors (counting 205162021) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100001110101000011000100101
3
Ternary
112022001022101101
4
Quaternary
30032220120211
5
Quinary
410010141041
6
Senary
32205200101
8
Octal
1416503045
10
Decimal
205162021
12
Duodecimal
58860031
16
Hexadecimal
c3a8625
20
Vigesimal
3425511
36
Base36
3e5c11
md5
9cac2e43e8440873d50411d7763eaa8d
sha1
d8453a606896b6888918d26d343816542815cdb1
sha256
1fe7c723d48076743094a3e3d8f4b9f615ae0b84fde4959ef6e5ea51a6e03715
sha512
a573ff42b3c34fa04ea437556dc443760f2ad3890cddd8c8d5e23da32892a7235aedacbcec7503538764aa0c3d83cddf17ad435b4418137acc01e769b61e3d49
ripemd-160
9e5d6c63422ce1705b7ec80d1a87d0d5bccb53f2
Diameter
410324042
Circumference
1289070995.9385
Area
1.3223420536961E+17
Volume
3.6172582425278E+25
Surface area
5.2893682147844E+17
Circumference
1289070995.9385
Perimeter
820648084
Area
42091454860804441
Diagonal
290142912.58207
Surface area
252548729164826646
Volume
8.6355679460729E+24
Space diagonal
355351044.15551
Perimeter
615486063
Area
1.8226134595851E+16
Altitude
177675522.07776
Surface area
1.8226134595851E+16
Volume
1.0177114423442E+24
Height
96714304.194025