1661505890 is an even 10-digits composite number following 1661505889
and preceding 1661505891 . In scientific notation, it is written as 1.661505890 × 10^9.
The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors.
There are 603749440 positive integers (up to 1661505890) that are relatively prime to 1661505890.
1661505890 has 16 divisors, whose sum is 2539397952
The reverse of 1661505890 is 0985051661
Previous prime number is 1637
Is Prime? no
Number parity even
Number length 10
Sum of Digits 41
Digital Root 5
Name
one billion six hundred sixty-one million five hundred five thousand eight hundred ninety
Scientific notation
1.661505890 × 10^9
Engineering notation
1.661505890 × 10^9
Prime Factorization
2 × 55 × 1637 × 9227
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1661505890
Product of the distinct prime numbers
The prime factorization of 1661505890 is 2 × 55 × 1637 × 9227.
Since it has a total of 4 prime factors.
8 , 6 , 64 , 58 , 540 , 981 , 6519 , 9855 , 56182 , 54853 , 147684 , 329308 , 2150484 , 3321759 , 27425546 , 86154036 , 564355320 , 487858659 , 1244468041 , 792508896
n×2
3323011780
n×3
4984517670
n×4
6646023560
n×5
8307529450
n÷2
830752945
n÷3
553835296.66667
n÷3
415376472.5
n÷5
332301178
n2
2760601822504692100
n3
4.5867561880363E+27
n4
7.6209224224162E+36
n5
1.2662207492078E+46
2 √n
40761.57369386
3 √n
1184.4060807488
4 √n
201.89495707882
5 √n
69.839380285686
1 , 2 , 55 , 110 , 1637 , 3274 , 9227 , 18454 , 90035 , 180070 , 507485 , 1014970 , 15104599 , 30209198 , 830752945 , 1661505890
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
-1661505889
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 1661505890 can be divided by 16 positive divisors.
The sum of these divisors (counting 1661505890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100011000010001001000101100010
3
Ternary
11021210102020121012
4
Quaternary
1203002021011202
5
Quinary
11400321142030
6
Senary
432511500522
8
Octal
14302110542
10
Decimal
1661505890
12
Duodecimal
3a4527742
16
Hexadecimal
63089162
20
Vigesimal
15j484ea
36
Base36
rh7u5e
md5
93bcaa459f68e0079652183fc57aa439
sha1
ff5e6edd1db128419dda0a1141e7d53180dfe3d3
sha256
70bfe2991cc7156aca0b9dda1bd2effb39c836df5df104c68729d130d4d6ebd6
sha512
bced49fee993db3c77b0d87d00373db154ab406dad14c7e5262cae0c7358e559fd57bee533cf34a04acd5d3c1001b8dcbb60691e26d13550ac97ce6f141860a2
ripemd-160
a35e3e945168cb8d451215cd632d0dcec10c3d09
Diameter
3323011780
Circumference
10439549395.84
Area
8.6726864050673E+18
Volume
1.921295939219E+28
Surface area
3.4690745620269E+19
Circumference
10439549395.84
Perimeter
6646023560
Area
2760601822504692100
Diagonal
2349724163.6008
Surface area
1.6563610935028E+19
Volume
4.5867561880363E+27
Space diagonal
2877812618.5549
Perimeter
4984517670
Area
1.1953756540113E+18
Altitude
1438906309.2775
Surface area
1.1953756540113E+18
Volume
5.4055440070164E+26
Height
783241387.86693