1661565145 is an odd 10-digits composite number following 1661565144
and preceding 1661565146 . In scientific notation, it is written as 1.661565145 × 10^9.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 1329252112 positive integers (up to 1661565145) that are relatively prime to 1661565145.
1661565145 has 4 divisors, whose sum is 1993878180
The reverse of 1661565145 is 5415651661
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 40
Digital Root 4
Name
one billion six hundred sixty-one million five hundred sixty-five thousand one hundred forty-five
Scientific notation
1.661565145 × 10^9
Engineering notation
1.661565145 × 10^9
Prime Factorization
5 × 332313029
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1661565145
Product of the distinct prime numbers
The prime factorization of 1661565145 is 5 × 332313029.
Since it has a total of 2 prime factors.
1 , 8 , 26 , 64 , 358 , 587 , 7594 , 6322 , 65105 , 47238 , 655786 , 334830 , 4733614 , 9268853 , 60414002 , 71281474 , 702732512 , 529616465 , 7223750018 , 7936713963
n×2
3323130290
n×3
4984695435
n×4
6646260580
n×5
8307825725
n÷2
830782572.5
n÷3
553855048.33333
n÷3
415391286.25
n÷5
332313029
n2
2760798731078871025
n3
4.5872469439209E+27
n4
7.6220096335267E+36
n5
1.2664465541922E+46
2 √n
40762.300536157
3 √n
1184.4201605761
4 √n
201.89675712145
5 √n
69.839878420958
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
-1661565144
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 1661565145 can be divided by 4 positive divisors.
The sum of these divisors (counting 1661565145) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100011000010010111100011011001
3
Ternary
11021210112020212211
4
Quaternary
1203002113203121
5
Quinary
11400330041040
6
Senary
432513035121
8
Octal
14302274331
10
Decimal
1661565145
12
Duodecimal
3a4555aa1
16
Hexadecimal
630978d9
20
Vigesimal
15j4fch5
36
Base36
rh93vd
md5
691a1fc1630afef367a226cd21afa404
sha1
abcf70c2edef148414ba970fbd37965c0f078823
sha256
6190c4cea02769ace50f565d493461b87438773390773f5df2eb6bb64f722843
sha512
9060ac08004df5de1dd9e89b61875f882f1de30fb93f668f14c8d5fd3ca4024450b9bc1674936c8da95f97ebb5b411194730d1b886d7b8b2df027b093e38bdf6
ripemd-160
5d0283b5ca2f79138184cade8adaa24df60d42cd
Diameter
3323130290
Circumference
10439921705.986
Area
8.6733050115974E+18
Volume
1.9215015065632E+28
Surface area
3.469322004639E+19
Circumference
10439921705.986
Perimeter
6646260580
Area
2760798731078871025
Diagonal
2349807962.8254
Surface area
1.6564792386473E+19
Volume
4.5872469439209E+27
Space diagonal
2877915251.2255
Perimeter
4984695435
Area
1.1954609179251E+18
Altitude
1438957625.6128
Surface area
1.1954609179251E+18
Volume
5.4061223683729E+26
Height
783269320.94181