31405 (number)

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.

Interesting facts

Basic properties

Name

Name thirty-one thousand four hundred five

Notation

Scientific notation 3.1405 × 10^4
Engineering notation 3.1405 × 10^3

Prime Factorization of 31405

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.

Most popular turbo-numbers

Basic calculations (n = 31405)

Multiplication

n×y
n×2 62810
n×3 94215
n×4 125620
n×5 157025

Division

n÷y
n÷2 15702.5
n÷3 10468.333333333
n÷3 7851.25
n÷5 6281

Exponentiation

ny
n2 986274025
n3 30973935755125
n4 972736452389700625
n5 3.0548788287299E+22

Nth Root

y√n
2√n 177.2145592213
3√n 31.550017120368
4√n 13.312195882772
5√n 7.9323114824311

Divisors of 31405

1, 5, 11, 55, 571, 2855, 6281, 31405

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 conversion 31405

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

Cryptographic Hash Functions

md5 e9e94782c7568e898a1ed151bb8b401b
sha1 3a5751fef4bb9bd27990f42eeb6204812903cb08
sha256 3982bfec5f3d7060361cc337a817daf0b32ba1dc22370b95e3dc35d722cfdfe4
sha512 afae4682875fe875934472707fc6c6dc81c2eaf70efc2dc71e0b74ebacf628c7002874603a9e4813444eb886ad51593510480ae3cbd30d72be1653dfebee0541
ripemd-160 951c99402f12d39a2cbe75c21c80a3b82a26ede2

31405 as geometric shapes

Circle

Radius = n
Diameter 62810
Circumference 197323.43457197
Area 3098471231.3664

Sphere

Radius = n
Volume 1.2974331869475E+14
Surface area 12393884925.466
Circumference 197323.43457197

Square

Length = n
Perimeter 125620
Area 986274025
Diagonal 44413.376926327

Cube

Length = n
Surface area 5917644150
Volume 30973935755125
Space diagonal 54395.055611701

Equilateral Triangle

Length = n
Perimeter 94215
Area 427069180.37136
Altitude 27197.52780585

Triangular Pyramid

Length = n
Surface area 427069180.37136
Volume 3650313335414.2
Height 14804.458975442