31389 is an odd 5-digits composite number following 31388
and preceding 31390 . In scientific notation, it is written as 3.1389 × 10^4.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 20924 positive integers (up to 31389) that are relatively prime to 31389.
31389 has 4 divisors, whose sum is 41856
The reverse of 31389 is 98313
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 24
Digital Root 6
Name
thirty-one thousand three hundred eighty-nine
Scientific notation
3.1389 × 10^4
Engineering notation
3.1389 × 10^3
Prime Factorization
3 × 10463
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31389
Product of the distinct prime numbers
The prime factorization of 31389 is 3 × 10463.
Since it has a total of 2 prime factors.
9 , 6 , 65 , 83 , 126 , 274 , 7076 , 611 , 10515 , 63802 , 38278 , 183243 , 4736675 , 6209665 , 13863192 , 95159480 , 731207632 , 51351276 , 6431924634 , 666977695
n×2
62778
n×3
94167
n×4
125556
n×5
156945
n÷2
15694.5
n÷3
10463
n÷3
7847.25
n÷5
6277.8
n2
985269321
n3
30926618716869
n4
970755634903801041
n5
3.0471048623995E+22
2 √n
177.16941045226
3 √n
31.544658249429
4 √n
13.310500007598
5 √n
7.9315030579385
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31388
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31389 can be divided by 4 positive divisors.
The sum of these divisors (counting 31389) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101010011101
3
Ternary
1121001120
4
Quaternary
13222131
5
Quinary
2001024
6
Senary
401153
8
Octal
75235
10
Decimal
31389
12
Duodecimal
161b9
16
Hexadecimal
7a9d
20
Vigesimal
3i99
36
Base36
o7x
md5
edbd47c8e4cabdf0b4e1e7f1069a226b
sha1
deddb1541f5286329315d431691b4516c31a67d5
sha256
d1962c36035b6504b5df009607845b3395900fd74d11c95d95b32073ac37c812
sha512
7ca1c94afeaac80165cb91f414c764491a8e489830f96171948258d628c5cca4fc55b207a199ce4c9cb289af982fa997dc29671750889abc9969e9229cb09018
ripemd-160
de99073d859fefe8f52ad4f8c6f1e7ec6cf70b8c
Diameter
62778
Circumference
197222.90360706
Area
3095314860.661
Volume
1.2954511754838E+14
Surface area
12381259442.644
Circumference
197222.90360706
Perimeter
125556
Area
985269321
Diagonal
44390.749509329
Surface area
5911615926
Volume
30926618716869
Space diagonal
54367.342798779
Perimeter
94167
Area
426634130.77772
Altitude
27183.67139939
Surface area
426634130.77772
Volume
3644736968978.1
Height
14796.91650311