393988 is an even 6-digits composite number following 393987
and preceding 393989 . In scientific notation, it is written as 3.93988 × 10^5.
The sum of its digits is 40. It has a total of 4 prime factors and 12 positive divisors.
There are 168840 positive integers (up to 393988) that are relatively prime to 393988.
393988 has 12 divisors, whose sum is 788032
The reverse of 393988 is 889393
Previous prime number is 7
Is Prime? no
Number parity even
Number length 6
Sum of Digits 40
Digital Root 4
Name
three hundred ninety-three thousand nine hundred eighty-eight
Scientific notation
3.93988 × 10^5
Engineering notation
3.93988 × 10^3
Prime Factorization
2 × 2 × 7 × 14071
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
196994
Product of the distinct prime numbers
The prime factorization of 393988 is 2 × 2 × 7 × 14071.
Since it has a total of 4 prime factors.
5 , 2 , 51 , 13 , 997 , 785 , 7214 , 2449 , 29675 , 67896 , 55409 , 9597 , 8178165 , 21010 , 30710395 , 71323711 , 289846301 , 125602366 , 1559481494 , 4927304239
n×2
787976
n×3
1181964
n×4
1575952
n×5
1969940
n÷2
196994
n÷3
131329.33333333
n÷3
98497
n÷5
78797.6
n2
155226544144
n3
61157395674206272
n4
2.4095280006889E+22
n5
9.4932511793543E+27
2 √n
627.68463419141
3 √n
73.309625026589
4 √n
25.053635149243
5 √n
13.155174064171
1 , 2 , 4 , 7 , 14 , 28 , 14071 , 28142 , 56284 , 98497 , 196994 , 393988
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
-393987
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 393988 can be divided by 12 positive divisors.
The sum of these divisors (counting 393988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1100000001100000100
3
Ternary
202000110011
4
Quaternary
1200030010
5
Quinary
100101423
6
Senary
12240004
8
Octal
1401404
10
Decimal
393988
12
Duodecimal
170004
16
Hexadecimal
60304
20
Vigesimal
294j8
36
Base36
8g04
md5
ea913856de52a35598524d7279177e76
sha1
a714dd4cd90a634f72c74cb78ce0ae058b442722
sha256
777cdf4b6dc1d3b90de58308b23a29f4391049c8c6370f0c30fe0b13caf2dbb5
sha512
0a5ce343ce5df39e2de49e0d37b588f9f9778c5406f3d4415f15f63f7bcdb3e76be144d043c75b163948ee6b53306889f714960cf039e2a87657267bcc09c098
ripemd-160
339ac170c193122b606f6a9875e9f09d90441522
Diameter
787976
Circumference
2475499.6128051
Area
487658570724.92
Volume
2.5617549995036E+17
Surface area
1950634282899.7
Circumference
2475499.6128051
Perimeter
1575952
Area
155226544144
Diagonal
557183.17301225
Surface area
931359264864
Volume
61157395674206272
Space diagonal
682407.23357245
Perimeter
1181964
Area
67215065285.185
Altitude
341203.61678622
Surface area
67215065285.185
Volume
7.2074682001567E+15
Height
185727.72433742