31405 is an odd 5-digits composite number following 31404
and preceding 31406 . In scientific notation, it is written as 3.1405 × 10^4.
The sum of its digits is 13. It has a total of 3 prime factors and 8 positive divisors.
There are 22800 positive integers (up to 31405) that are relatively prime to 31405.
31405 has 8 divisors, whose sum is 41184
The reverse of 31405 is 50413
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 13
Digital Root 4
Name
thirty-one thousand four hundred five
Scientific notation
3.1405 × 10^4
Engineering notation
3.1405 × 10^3
Prime Factorization
5 × 11 × 571
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
31405
Product of the distinct prime numbers
The prime factorization of 31405 is 5 × 11 × 571.
Since it has a total of 3 prime factors.
1 , 6 , 37 , 33 , 871 , 658 , 966 , 8334 , 53427 , 39879 , 79431 , 361995 , 3058282 , 2726566 , 94824215 , 3903511 , 377065539 , 775503877 , 5286937129 , 588924779
n×2
62810
n×3
94215
n×4
125620
n×5
157025
n÷2
15702.5
n÷3
10468.333333333
n÷3
7851.25
n÷5
6281
n2
986274025
n3
30973935755125
n4
972736452389700625
n5
3.0548788287299E+22
2 √n
177.2145592213
3 √n
31.550017120368
4 √n
13.312195882772
5 √n
7.9323114824311
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
-31404
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 31405 can be divided by 8 positive divisors.
The sum of these divisors (counting 31405) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101010101101
3
Ternary
1121002011
4
Quaternary
13222231
5
Quinary
2001110
6
Senary
401221
8
Octal
75255
10
Decimal
31405
12
Duodecimal
16211
16
Hexadecimal
7aad
20
Vigesimal
3ia5
36
Base36
o8d
md5
e9e94782c7568e898a1ed151bb8b401b
sha1
3a5751fef4bb9bd27990f42eeb6204812903cb08
sha256
3982bfec5f3d7060361cc337a817daf0b32ba1dc22370b95e3dc35d722cfdfe4
sha512
afae4682875fe875934472707fc6c6dc81c2eaf70efc2dc71e0b74ebacf628c7002874603a9e4813444eb886ad51593510480ae3cbd30d72be1653dfebee0541
ripemd-160
951c99402f12d39a2cbe75c21c80a3b82a26ede2
Diameter
62810
Circumference
197323.43457197
Area
3098471231.3664
Volume
1.2974331869475E+14
Surface area
12393884925.466
Circumference
197323.43457197
Perimeter
125620
Area
986274025
Diagonal
44413.376926327
Surface area
5917644150
Volume
30973935755125
Space diagonal
54395.055611701
Perimeter
94215
Area
427069180.37136
Altitude
27197.52780585
Surface area
427069180.37136
Volume
3650313335414.2
Height
14804.458975442