12891005 (number)

12891005 is an odd 8-digits composite number following 12891004 and preceding 12891006. In scientific notation, it is written as 1.2891005 × 10^7. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 10312800 positive integers (up to 12891005) that are relatively prime to 12891005.

Interesting facts

Basic properties

Name

Name twelve million eight hundred ninety-one thousand five

Notation

Scientific notation 1.2891005 × 10^7
Engineering notation 1.2891005 × 10^6

Prime Factorization of 12891005

Prime Factorization 5 × 2578201

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 12891005
Product of the distinct prime numbers

The prime factorization of 12891005 is 5 × 2578201. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 12891005)

Multiplication

n×y
n×2 25782010
n×3 38673015
n×4 51564020
n×5 64455025

Division

n÷y
n÷2 6445502.5
n÷3 4297001.6666667
n÷3 3222751.25
n÷5 2578201

Exponentiation

ny
n2 166178009910025
n3 2.1422015566402E+21
n4 2.7615130977656E+28
n5 3.5598679150862E+35

Nth Root

y√n
2√n 3590.4045733037
3√n 234.47448588346
4√n 59.919984757205
5√n 26.4275775172

Divisors of 12891005

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 -12891004
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 12891005 can be divided by 4 positive divisors. The sum of these divisors (counting 12891005) is 1, the average is 0.25.

Base conversion 12891005

Base System Value
2 Binary 110001001011001101111101
3 Ternary 220020221010122
4 Quaternary 301023031331
5 Quinary 11300003010
6 Senary 1140144325
8 Octal 61131575
10 Decimal 12891005
12 Duodecimal 43980a5
16 Hexadecimal c4b37d
20 Vigesimal 40b7a5
36 Base36 7oarh

Cryptographic Hash Functions

md5 7790e7e4d90d2bad71281096fed33f1e
sha1 d49cdb35592fc7c8ffd25139cb9a9224278c1ba2
sha256 413251df790c26a6db09345b7b7c07b1bb32c7e61a10a2cb12e37f8e75b63e97
sha512 76c80a5a1af017a1fb034d74be2b8f2147fa22553d55003c1696cccbab9334612e7b6b8b1d642c5737dccbfc043bfd2b897de41eee9252bb2b59f64cafae38a4
ripemd-160 4281232b37d1b8f9fd40491c77fc398fd65a60fc

12891005 as geometric shapes

Circle

Radius = n
Diameter 25782010
Circumference 80996573.210779
Area 5.2206361512151E+14

Sphere

Radius = n
Volume 8.9732328971326E+21
Surface area 2.088254460486E+15
Circumference 80996573.210779

Square

Length = n
Perimeter 51564020
Area 166178009910025
Diagonal 18230634.103619

Cube

Length = n
Surface area 997068059460150
Volume 2.1422015566402E+21
Space diagonal 22327875.620624

Equilateral Triangle

Length = n
Perimeter 38673015
Area 71957189066212
Altitude 11163937.810312

Triangular Pyramid

Length = n
Surface area 71957189066212
Volume 2.5246087456144E+20
Height 6076878.0345398