661569121 is an odd 9-digits composite number following 661569120
and preceding 661569122 . In scientific notation, it is written as 6.61569121 × 10^8.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 660567600 positive integers (up to 661569121) that are relatively prime to 661569121.
661569121 has 4 divisors, whose sum is 662570644
The reverse of 661569121 is 121965166
Previous prime number is 661
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 37
Digital Root 1
Name
six hundred sixty-one million five hundred sixty-nine thousand one hundred twenty-one
Scientific notation
6.61569121 × 10^8
Engineering notation
6.61569121 × 10^6
Prime Factorization
661 × 1000861
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
661569121
Product of the distinct prime numbers
The prime factorization of 661569121 is 661 × 1000861.
Since it has a total of 2 prime factors.
7 , 2 , 8 , 40 , 554 , 493 , 2350 , 3561 , 84121 , 52616 , 356971 , 835348 , 3318071 , 6062132 , 42660577 , 23931066 , 870889649 , 641955849 , 4848698680 , 2617746876
n×2
1323138242
n×3
1984707363
n×4
2646276484
n×5
3307845605
n÷2
330784560.5
n÷3
220523040.33333
n÷3
165392280.25
n÷5
132313824.2
n2
437673701860712641
n3
2.8955140622481E+26
n4
1.9155826930046E+35
n5
1.2672903584139E+44
2 √n
25720.986003651
3 √n
871.34820735842
4 √n
160.37763560937
5 √n
58.091828322596
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
-661569120
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 661569121 can be divided by 4 positive divisors.
The sum of these divisors (counting 661569121) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111011011101011111001100001
3
Ternary
1201002212012020001
4
Quaternary
213123223321201
5
Quinary
2323330202441
6
Senary
145351420001
8
Octal
4733537141
10
Decimal
661569121
12
Duodecimal
165684601
16
Hexadecimal
276ebe61
20
Vigesimal
a6eg2g1
36
Base36
axvq01
md5
0694dbb5a832cf42140f15b2efaa1f45
sha1
538f54e0444e126ec00c12dcfed5076a3af8ca2b
sha256
a7237bdf4b1974c4c283053a500de9d4179d937b5c8e0dabe5dc15461fec28d1
sha512
e5f9e462744425f41e63d1fa10cb7e4963948e1648e1600c60f470a5a877cda15d6466436b7e5e4d775df9aad114b88c15a28ad8c0254470568e3b516419ba71
ripemd-160
a94ba3f9e7dad86b80f94326617ab8397eaa2dba
Diameter
1323138242
Circumference
4156761380.7509
Area
1.3749924864351E+18
Volume
1.2128700941766E+27
Surface area
5.4999699457403E+18
Circumference
4156761380.7509
Perimeter
2646276484
Area
437673701860712641
Diagonal
935600023.36545
Surface area
2626042211164275846
Volume
2.8955140622481E+26
Space diagonal
1145871330.2907
Perimeter
1984707363
Area
1.8951827218988E+17
Altitude
572935665.14534
Surface area
1.8951827218988E+17
Volume
3.4123960473944E+25
Height
311866674.45515