1389905 is an odd 7-digits composite number following 1389904
and preceding 1389906 . In scientific notation, it is written as 1.389905 × 10^6.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 982080 positive integers (up to 1389905) that are relatively prime to 1389905.
1389905 has 8 divisors, whose sum is 1455552
The reverse of 1389905 is 5099831
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 35
Digital Root 8
Name
one million three hundred eighty-nine thousand nine hundred five
Scientific notation
1.389905 × 10^6
Engineering notation
1.389905 × 10^6
Prime Factorization
55 × 37 × 683
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1389905
Product of the distinct prime numbers
The prime factorization of 1389905 is 55 × 37 × 683.
Since it has a total of 3 prime factors.
1 , 5 , 32 , 68 , 336 , 498 , 2828 , 5271 , 43899 , 94463 , 544943 , 693793 , 7039118 , 2370026 , 3128071 , 69779630 , 16604494 , 413350117 , 3286771364 , 9271530489
n×2
2779810
n×3
4169715
n×4
5559620
n×5
6949525
n÷2
694952.5
n÷3
463301.66666667
n÷3
347476.25
n÷5
277981
n2
1931835909025
n3
2685068389133392625
n4
3.7319899793984E+24
n5
5.1871115323158E+30
2 √n
1178.9423225926
3 √n
111.59936044477
4 √n
34.335729533426
5 √n
16.927663742393
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
-1389904
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 1389905 can be divided by 8 positive divisors.
The sum of these divisors (counting 1389905) is 1, the average is 0.125.
Base
System
Value
2
Binary
101010011010101010001
3
Ternary
2121121120222
4
Quaternary
11103111101
5
Quinary
323434110
6
Senary
45442425
8
Octal
5232521
10
Decimal
1389905
12
Duodecimal
570415
16
Hexadecimal
153551
20
Vigesimal
8def5
36
Base36
tsgh
md5
2cdd93598ef569462210436c4f5510ef
sha1
0a3c4e7828c57819274319aebaeab4bce2712913
sha256
c799e5706a22aaa11b9cab06765a41cab9e1eddf6465af57fe52d7cf30a074d6
sha512
9a2f2a7c315357efe9dfd2cd1249287f79c9c78b41cb1f1e1dac888074e6b35f3df2967e4f2cb44604ffc8352582f28143ec0fe4c20b46a3045ed6914750b17e
ripemd-160
450b170b508e4e6d30c4437fee4f0b77fa1707af
Diameter
2779810
Circumference
8733030.6743754
Area
6069041499733.9
Volume
1.1247188167584E+19
Surface area
24276165998936
Circumference
8733030.6743754
Perimeter
5559620
Area
1931835909025
Diagonal
1965622.5014102
Surface area
11591015454150
Volume
2685068389133392625
Space diagonal
2407386.077694
Perimeter
4169715
Area
836509486579.33
Altitude
1203693.038847
Surface area
836509486579.33
Volume
3.1643834431764E+17
Height
655207.50047006