1645117989 is an odd 10-digits composite number following 1645117988
and preceding 1645117990 . In scientific notation, it is written as 1.645117989 × 10^9.
The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors.
There are 1069315200 positive integers (up to 1645117989) that are relatively prime to 1645117989.
1645117989 has 16 divisors, whose sum is 2248419264
The reverse of 1645117989 is 9897115461
Previous prime number is 6421
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 51
Digital Root 6
Name
one billion six hundred forty-five million one hundred seventeen thousand nine hundred eighty-nine
Scientific notation
1.645117989 × 10^9
Engineering notation
1.645117989 × 10^9
Prime Factorization
3 × 41 × 6421 × 2083
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1645117989
Product of the distinct prime numbers
The prime factorization of 1645117989 is 3 × 41 × 6421 × 2083.
Since it has a total of 4 prime factors.
6 , 1 , 90 , 62 , 715 , 486 , 6564 , 4870 , 20559 , 64671 , 360584 , 219363 , 785628 , 6917057 , 53195653 , 2594348 , 806190039 , 428607612 , 3201148668 , 4821135247
n×2
3290235978
n×3
4935353967
n×4
6580471956
n×5
8225589945
n÷2
822558994.5
n÷3
548372663
n÷3
411279497.25
n÷5
329023597.8
n2
2706413197731404121
n3
4.4523690372549E+27
n4
7.3246723968547E+36
n5
1.2049950323597E+46
2 √n
40560.054104993
3 √n
1180.4991637541
4 √n
201.39526832821
5 √n
69.701064405122
1 , 3 , 41 , 123 , 2083 , 6249 , 6421 , 19263 , 85403 , 256209 , 263261 , 789783 , 13374943 , 40124829 , 548372663 , 1645117989
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
-1645117988
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 1645117989 can be divided by 16 positive divisors.
The sum of these divisors (counting 1645117989) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100010000011101000001000100101
3
Ternary
11020122120122121220
4
Quaternary
1202003220020211
5
Quinary
11332122233424
6
Senary
431124330553
8
Octal
14203501045
10
Decimal
1645117989
12
Duodecimal
39ab43a59
16
Hexadecimal
620e8225
20
Vigesimal
15e1jej9
36
Base36
r7gl5x
md5
591848ac7e62f763eea2c8590f372046
sha1
33ecaa286318927572f3ce41b23646660bb0d964
sha256
04314731a15a7bd81dfa6c44dc4e7364f1894ed67cb59426973cf1c2c6e4858e
sha512
0faf6030607e71e5ceb809d915b90f60ced1c926c4cdaed52947baa5a801581f7462619e1d546ca3cc43e202a4a9e2757779da4b0656af2f1c13deb406e4bdb9
ripemd-160
66bce62c1085aa4bd9d2e3af45d470a16fe77b78
Diameter
3290235978
Circumference
10336581177.062
Area
8.5024478195714E+18
Volume
1.8650039811348E+28
Surface area
3.4009791278286E+19
Circumference
10336581177.062
Perimeter
6580471956
Area
2706413197731404121
Diagonal
2326548171.7478
Surface area
1.6238479186388E+19
Volume
4.4523690372549E+27
Space diagonal
2849427941.3935
Perimeter
4935353967
Area
1.1719112911864E+18
Altitude
1424713970.6968
Surface area
1.1719112911864E+18
Volume
5.24716723098E+26
Height
775516057.24925