1388428 is an even 7-digits composite number following 1388427
and preceding 1388429 . In scientific notation, it is written as 1.388428 × 10^6.
The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors.
There are 671760 positive integers (up to 1388428) that are relatively prime to 1388428.
1388428 has 12 divisors, whose sum is 2508352
The reverse of 1388428 is 8248831
Previous prime number is 31
Is Prime? no
Number parity even
Number length 7
Sum of Digits 34
Digital Root 7
Name
one million three hundred eighty-eight thousand four hundred twenty-eight
Scientific notation
1.388428 × 10^6
Engineering notation
1.388428 × 10^6
Prime Factorization
2 × 2 × 31 × 11197
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
694214
Product of the distinct prime numbers
The prime factorization of 1388428 is 2 × 2 × 31 × 11197.
Since it has a total of 4 prime factors.
8 , 5 , 5 , 28 , 824 , 434 , 6461 , 8674 , 63071 , 84942 , 331041 , 144739 , 551990 , 4193125 , 69693905 , 20578081 , 782189917 , 334280550 , 5950174650 , 6048493066
n×2
2776856
n×3
4165284
n×4
5553712
n×5
6942140
n÷2
694214
n÷3
462809.33333333
n÷3
347107
n÷5
277685.6
n2
1927732311184
n3
2676517517352578752
n4
3.7161518635828E+24
n5
5.1596092996505E+30
2 √n
1178.3157471578
3 √n
111.55981561331
4 √n
34.326604072611
5 √n
16.924064533285
1 , 2 , 4 , 31 , 62 , 124 , 11197 , 22394 , 44788 , 347107 , 694214 , 1388428
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1388427
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1388428 can be divided by 12 positive divisors.
The sum of these divisors (counting 1388428) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101010010111110001100
3
Ternary
2121112120021
4
Quaternary
11102332030
5
Quinary
323412203
6
Senary
45431524
8
Octal
5227614
10
Decimal
1388428
12
Duodecimal
56b5a4
16
Hexadecimal
152f8c
20
Vigesimal
8db18
36
Base36
trbg
md5
3b716b19d73685605b25e0731a45c997
sha1
6330b0ffa3248d8ceea0af2a5c624f37d5d4e482
sha256
15433ba9695d2cbf96242c9b6fad357eb44ad706d5cb4cdb9fb750feb9fe6464
sha512
7a0eaad7bb21d3aa0b4c866d69ff35c728eb73f31d57a9ab806d6f71643a870c8d709b6a03439d0e100d928c3aeedfb3cb36ca9080afbd170f8f9b853cd5d861
ripemd-160
ed464577271fdfa11c6f8d315c3538d92bec34cf
Diameter
2776856
Circumference
8723750.4096767
Area
6056149666903.3
Volume
1.1211370359626E+19
Surface area
24224598667613
Circumference
8723750.4096767
Perimeter
5553712
Area
1927732311184
Diagonal
1963533.7079786
Surface area
11566393867104
Volume
2676517517352578752
Space diagonal
2404827.8386512
Perimeter
4165284
Area
834732576590.72
Altitude
1202413.9193256
Surface area
834732576590.72
Volume
3.154306144141E+17
Height
654511.23599285