1388145 is an odd 7-digits composite number following 1388144
and preceding 1388146 . In scientific notation, it is written as 1.388145 × 10^6.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 655040 positive integers (up to 1388145) that are relatively prime to 1388145.
1388145 has 16 divisors, whose sum is 1935360
The reverse of 1388145 is 5418831
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 30
Digital Root 3
Name
one million three hundred eighty-eight thousand one hundred forty-five
Scientific notation
1.388145 × 10^6
Engineering notation
1.388145 × 10^6
Prime Factorization
55 × 3 × 47 × 179
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1388145
Product of the distinct prime numbers
The prime factorization of 1388145 is 55 × 3 × 47 × 179.
Since it has a total of 4 prime factors.
5 , 1 , 84 , 4 , 850 , 239 , 2537 , 3966 , 9854 , 87133 , 71563 , 435095 , 6490286 , 3343171 , 89755216 , 82333994 , 199683400 , 131257530 , 4445526473 , 1563998647
n×2
2776290
n×3
4164435
n×4
5552580
n×5
6940725
n÷2
694072.5
n÷3
462715
n÷3
347036.25
n÷5
277629
n2
1926946541025
n3
2674881206191148625
n4
3.7131229719682E+24
n5
5.1543530879228E+30
2 √n
1178.19565438
3 √n
111.55223544036
4 √n
34.324854761237
5 √n
16.923374558608
1 , 3 , 47 , 55 , 141 , 165 , 179 , 537 , 2585 , 7755 , 8413 , 9845 , 25239 , 29535 , 462715 , 1388145
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
-1388144
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 1388145 can be divided by 16 positive divisors.
The sum of these divisors (counting 1388145) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101010010111001110001
3
Ternary
2121112011210
4
Quaternary
11102321301
5
Quinary
323410040
6
Senary
45430333
8
Octal
5227161
10
Decimal
1388145
12
Duodecimal
56b3a9
16
Hexadecimal
152e71
20
Vigesimal
8da75
36
Base36
tr3l
md5
efc758fcd0333ed9f10a116ec5a82520
sha1
b4ddbce9cb493d0e0b1af64946b83bd6f4225229
sha256
c2aa0a8d594ee2aba5d13fa88ed87bfb1db130b50a1fdd31a2d1c4e017e63a80
sha512
074f5b1f98c9dd91cbe6e7eb143d5fb56b6e816c1d71e72b4a44584ff947ad8814d74c8d3fc508b3af643a82929baa2e6974ca39413d765139464c15d7784b68
ripemd-160
0d1c2ef4b6d7eae24a70ae61d73f26a12411e14f
Diameter
2776290
Circumference
8721972.2682348
Area
6053681097144.4
Volume
1.1204516195461E+19
Surface area
24214724388578
Circumference
8721972.2682348
Perimeter
5552580
Area
1926946541025
Diagonal
1963133.4855404
Surface area
11561679246150
Volume
2674881206191148625
Space diagonal
2404337.6682727
Perimeter
4164435
Area
834392328131.1
Altitude
1202168.8341363
Surface area
834392328131.1
Volume
3.1523777329437E+17
Height
654377.82851347