12891491 (number)

12891491 is an odd 8-digits composite number following 12891490 and preceding 12891492. In scientific notation, it is written as 1.2891491 × 10^7. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 12133152 positive integers (up to 12891491) that are relatively prime to 12891491.

Interesting facts

Basic properties

Name

Name twelve million eight hundred ninety-one thousand four hundred ninety-one

Notation

Scientific notation 1.2891491 × 10^7
Engineering notation 1.2891491 × 10^6

Prime Factorization of 12891491

Prime Factorization 17 × 758323

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 12891491
Product of the distinct prime numbers

The prime factorization of 12891491 is 17 × 758323. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 12891491)

Multiplication

n×y
n×2 25782982
n×3 38674473
n×4 51565964
n×5 64457455

Division

n÷y
n÷2 6445745.5
n÷3 4297163.6666667
n÷3 3222872.75
n÷5 2578298.2

Exponentiation

ny
n2 166190540203081
n3 2.1424438533132E+21
n4 2.7619295652992E+28
n5 3.5605390133688E+35

Nth Root

y√n
2√n 3590.4722530609
3√n 234.47743246438
4√n 59.920549505665
5√n 26.427776781865

Divisors of 12891491

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 -12891490
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 12891491 can be divided by 4 positive divisors. The sum of these divisors (counting 12891491) is 1, the average is 0.25.

Base conversion 12891491

Base System Value
2 Binary 110001001011010101100011
3 Ternary 220020221210122
4 Quaternary 301023111203
5 Quinary 11300011431
6 Senary 1140150455
8 Octal 61132543
10 Decimal 12891491
12 Duodecimal 439842b
16 Hexadecimal c4b563
20 Vigesimal 40b8eb
36 Base36 7ob4z

Cryptographic Hash Functions

md5 39ff5a7eedb409a68761ced039de7c05
sha1 2204f00b064ce7e7664721625687c3ff352695ec
sha256 7e7728953c36deb38d2d32d9083adf32dca680918f503aca425af2720dd45d91
sha512 ddcccb6e2752c3590ece3cc57cb948e9a4197723d0a7b9ab31024c3e2bd4fd7a7fd4676c182cee6173366995179ffcbf20c45cb3f52c4dba36719656e5cba091
ripemd-160 26194c7bd41a8b6e3ff70663a0bbb9b3b4d8b6d4

12891491 as geometric shapes

Circle

Radius = n
Diameter 25782982
Circumference 80999626.838838
Area 5.2210298019812E+14

Sphere

Radius = n
Volume 8.974247827063E+21
Surface area 2.0884119207925E+15
Circumference 80999626.838838

Square

Length = n
Perimeter 51565964
Area 166190540203081
Diagonal 18231321.411411

Cube

Length = n
Surface area 997143241218486
Volume 2.1424438533132E+21
Space diagonal 22328717.397317

Equilateral Triangle

Length = n
Perimeter 38674473
Area 71962614842264
Altitude 11164358.698658

Triangular Pyramid

Length = n
Surface area 71962614842264
Volume 2.524894294982E+20
Height 6077107.1371369