12881 (number)

12881 is an odd 5-digits composite number following 12880 and preceding 12882. In scientific notation, it is written as 1.2881 × 10^4. The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors. There are 11700 positive integers (up to 12881) that are relatively prime to 12881.

Interesting facts

Basic properties

Name

Name twelve thousand eight hundred eighty-one

Notation

Scientific notation 1.2881 × 10^4
Engineering notation 1.2881 × 10^3

Prime Factorization of 12881

Prime Factorization 11 × 1171

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 12881
Product of the distinct prime numbers

The prime factorization of 12881 is 11 × 1171. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 7, 96, 4, 433, 723, 1258, 1008, 92486, 20820, 112053, 275557, 12525, 1886185, 80003886, 58441040, 482327055, 527761900, 6795981993, 2892281235

Basic calculations (n = 12881)

Multiplication

n×y
n×2 25762
n×3 38643
n×4 51524
n×5 64405

Division

n÷y
n÷2 6440.5
n÷3 4293.6666666667
n÷3 3220.25
n÷5 2576.2

Exponentiation

ny
n2 165920161
n3 2137217593841
n4 27529499826265921
n5 3.5460748726213E+20

Nth Root

y√n
2√n 113.49449325848
3√n 23.441380986946
4√n 10.653379429011
5√n 6.6372765902303

Divisors of 12881

1, 11, 1171, 12881

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 -12880
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 12881 can be divided by 4 positive divisors. The sum of these divisors (counting 12881) is 1, the average is 0.25.

Base conversion 12881

Base System Value
2 Binary 11001001010001
3 Ternary 122200002
4 Quaternary 3021101
5 Quinary 403011
6 Senary 135345
8 Octal 31121
10 Decimal 12881
12 Duodecimal 7555
16 Hexadecimal 3251
20 Vigesimal 1c41
36 Base36 9xt

Cryptographic Hash Functions

md5 ce74b141bbb6d057b757fffd582cad93
sha1 f037a960d64f42be7efc1bb7e4652099fd35990f
sha256 b4d56b2b547fff9f68c96af382411b5da1ca16ee9d1e5b22840daf6ee1820782
sha512 96404fac1c2553f8840efc6af4b3038397ae8d125c8d4453116b578c2c4541f02df18df2342677bd627127e2b04e734778612ac7b5f8fef73edb7d74112876d2
ripemd-160 b2426eb18326209a3e542ff214c6f77ca9dcde07

12881 as geometric shapes

Circle

Radius = n
Diameter 25762
Circumference 80933.70994178
Area 521253558.88004

Sphere

Radius = n
Volume 8952356122578.3
Surface area 2085014235.5201
Circumference 80933.70994178

Square

Length = n
Perimeter 51524
Area 165920161
Diagonal 18216.484896928

Cube

Length = n
Surface area 995520966
Volume 2137217593841
Space diagonal 22310.546452295

Equilateral Triangle

Length = n
Perimeter 38643
Area 71845537.213002
Altitude 11155.273226147

Triangular Pyramid

Length = n
Surface area 71845537.213002
Volume 251873508912.69
Height 6072.1616323093