12897781 (number)

12897781 is an odd 8-digits composite number following 12897780 and preceding 12897782. In scientific notation, it is written as 1.2897781 × 10^7. The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors. There are 11202048 positive integers (up to 12897781) that are relatively prime to 12897781.

Interesting facts

Basic properties

Name

Name twelve million eight hundred ninety-seven thousand seven hundred eighty-one

Notation

Scientific notation 1.2897781 × 10^7
Engineering notation 1.2897781 × 10^6

Prime Factorization of 12897781

Prime Factorization 13 × 17 × 17 × 3433

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 758693
Product of the distinct prime numbers

The prime factorization of 12897781 is 13 × 17 × 17 × 3433. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 6, 91, 17, 543, 762, 1301, 6638, 53307, 99535, 617307, 425281, 3513269, 9705906, 38384266, 59794192, 267640494, 874371935, 2253326440, 5266002590

Basic calculations (n = 12897781)

Multiplication

n×y
n×2 25795562
n×3 38693343
n×4 51591124
n×5 64488905

Division

n÷y
n÷2 6448890.5
n÷3 4299260.3333333
n÷3 3224445.25
n÷5 2579556.2

Exponentiation

ny
n2 166352754723961
n3 2.1455813991764E+21
n4 2.767323900425E+28
n5 3.5692337623748E+35

Nth Root

y√n
2√n 3591.3480755839
3√n 234.51556157461
4√n 59.927857258406
5√n 26.430355200182

Divisors of 12897781

1, 13, 17, 221, 289, 3433, 3757, 44629, 58361, 758693, 992137, 12897781

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12897780
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12897781 can be divided by 12 positive divisors. The sum of these divisors (counting 12897781) is 1, the average is 0.083333333333333.

Base conversion 12897781

Base System Value
2 Binary 110001001100110111110101
3 Ternary 220021021102121
4 Quaternary 301030313311
5 Quinary 11300212111
6 Senary 1140235541
8 Octal 61146765
10 Decimal 12897781
12 Duodecimal 439bbb1
16 Hexadecimal c4cdf5
20 Vigesimal 40c491
36 Base36 7ofzp

Cryptographic Hash Functions

md5 5cb8836352f11d391803ac0a02d9c020
sha1 b76f2b6e24ed2787f1dfc7f3e5781344f766fba5
sha256 665e4ddb170a0617de72cc3dce2f47dba59af4cf0c60fc762ab0c9a616578fbd
sha512 fc0ece08a0bf95f96ef4b6db8d8af94d53f76edf54a59d607c6bd8296d4e3899e4840ab93c1fe000f2d9cd9522e4c1d803aed2c8e3d591ec149af15e121c763c
ripemd-160 b6347865c2b5eb128b0e283927fb806a19a68d52

12897781 as geometric shapes

Circle

Radius = n
Diameter 25795562
Circumference 81039148.07442
Area 5.2261259214522E+14

Sphere

Radius = n
Volume 8.9873903484418E+21
Surface area 2.0904503685809E+15
Circumference 81039148.07442

Square

Length = n
Perimeter 51591124
Area 166352754723961
Diagonal 18240216.814718

Cube

Length = n
Surface area 998116528343766
Volume 2.1455813991764E+21
Space diagonal 22339611.996897

Equilateral Triangle

Length = n
Perimeter 38693343
Area 72032855790236
Altitude 11169805.998448

Triangular Pyramid

Length = n
Surface area 72032855790236
Volume 2.5285919282422E+20
Height 6080072.2715727