1689945 is an odd 7-digits composite number following 1689944
and preceding 1689946 . In scientific notation, it is written as 1.689945 × 10^6.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 901296 positive integers (up to 1689945) that are relatively prime to 1689945.
1689945 has 8 divisors, whose sum is 2703936
The reverse of 1689945 is 5499861
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 42
Digital Root 6
Name
one million six hundred eighty-nine thousand nine hundred forty-five
Scientific notation
1.689945 × 10^6
Engineering notation
1.689945 × 10^6
Prime Factorization
3 × 5 × 112663
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1689945
Product of the distinct prime numbers
The prime factorization of 1689945 is 3 × 5 × 112663.
Since it has a total of 3 prime factors.
8 , 5 , 82 , 21 , 789 , 19 , 5117 , 7849 , 24316 , 43870 , 24110 , 353950 , 9233599 , 2729569 , 56742814 , 39468146 , 476892923 , 102883250 , 9665876972 , 6808822355
n×2
3379890
n×3
5069835
n×4
6759780
n×5
8449725
n÷2
844972.5
n÷3
563315
n÷3
422486.25
n÷5
337989
n2
2855914103025
n3
4826337758836583625
n4
8.1562453638571E+24
n5
1.3783606071423E+31
2 √n
1299.9788459817
3 √n
119.11255034363
4 √n
36.055219399994
5 √n
17.602506530301
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1689944
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1689945 can be divided by 8 positive divisors.
The sum of these divisors (counting 1689945) is 1, the average is 0.125.
Base
System
Value
2
Binary
110011100100101011001
3
Ternary
10011212011120
4
Quaternary
12130211121
5
Quinary
413034240
6
Senary
100115453
8
Octal
6344531
10
Decimal
1689945
12
Duodecimal
695b89
16
Hexadecimal
19c959
20
Vigesimal
ab4h5
36
Base36
107yx
md5
1ca8963fd81061ba51c00187f340e08b
sha1
bc4b6d2c71a95cb18f62bb28057f373a9773d4cf
sha256
f0aa011877b517b9e392649481ef25355442a1d1cc0c92a1ca55be9f800582c9
sha512
e6e7043b6f43ec660a85affcb2e163bd2f3e532ed1667ec3b0e466867ae5b4d5cabf3c40a90d10947cd5bc705b9db19c0f7b8848bbb90755a419887d37947dac
ripemd-160
85a0dee07fc21aea2f95f1372d11c404dbdca526
Diameter
3379890
Circumference
10618237.593942
Area
8972118765346.8
Volume
2.0216516329205E+19
Surface area
35888475061387
Circumference
10618237.593942
Perimeter
6759780
Area
2855914103025
Diagonal
2389943.1386646
Surface area
17135484618150
Volume
4826337758836583625
Space diagonal
2927070.601997
Perimeter
5069835
Area
1236647082122.9
Altitude
1463535.3009985
Surface area
1236647082122.9
Volume
5.6878935959501E+17
Height
796647.7128882