31389 (number)

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.

Interesting facts

Basic properties

Name

Name thirty-one thousand three hundred eighty-nine

Notation

Scientific notation 3.1389 × 10^4
Engineering notation 3.1389 × 10^3

Prime Factorization of 31389

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.

Most popular turbo-numbers

Basic calculations (n = 31389)

Multiplication

n×y
n×2 62778
n×3 94167
n×4 125556
n×5 156945

Division

n÷y
n÷2 15694.5
n÷3 10463
n÷3 7847.25
n÷5 6277.8

Exponentiation

ny
n2 985269321
n3 30926618716869
n4 970755634903801041
n5 3.0471048623995E+22

Nth Root

y√n
2√n 177.16941045226
3√n 31.544658249429
4√n 13.310500007598
5√n 7.9315030579385

Divisors of 31389

1, 3, 10463, 31389

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 conversion 31389

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

Cryptographic Hash Functions

md5 edbd47c8e4cabdf0b4e1e7f1069a226b
sha1 deddb1541f5286329315d431691b4516c31a67d5
sha256 d1962c36035b6504b5df009607845b3395900fd74d11c95d95b32073ac37c812
sha512 7ca1c94afeaac80165cb91f414c764491a8e489830f96171948258d628c5cca4fc55b207a199ce4c9cb289af982fa997dc29671750889abc9969e9229cb09018
ripemd-160 de99073d859fefe8f52ad4f8c6f1e7ec6cf70b8c

31389 as geometric shapes

Circle

Radius = n
Diameter 62778
Circumference 197222.90360706
Area 3095314860.661

Sphere

Radius = n
Volume 1.2954511754838E+14
Surface area 12381259442.644
Circumference 197222.90360706

Square

Length = n
Perimeter 125556
Area 985269321
Diagonal 44390.749509329

Cube

Length = n
Surface area 5911615926
Volume 30926618716869
Space diagonal 54367.342798779

Equilateral Triangle

Length = n
Perimeter 94167
Area 426634130.77772
Altitude 27183.67139939

Triangular Pyramid

Length = n
Surface area 426634130.77772
Volume 3644736968978.1
Height 14796.91650311