12781321 (number)

12781321 is an odd 8-digits composite number following 12781320 and preceding 12781322. In scientific notation, it is written as 1.2781321 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors. There are 10505664 positive integers (up to 12781321) that are relatively prime to 12781321.

Interesting facts

Basic properties

Name

Name twelve million seven hundred eighty-one thousand three hundred twenty-one

Notation

Scientific notation 1.2781321 × 10^7
Engineering notation 1.2781321 × 10^6

Prime Factorization of 12781321

Prime Factorization 7 × 53 × 47 × 733

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 12781321
Product of the distinct prime numbers

The prime factorization of 12781321 is 7 × 53 × 47 × 733. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 1, 19, 68, 746, 762, 892, 7728, 82805, 58697, 211479, 509404, 4525725, 3145486, 73911081, 57582694, 381967421, 468733619, 3259921783, 384980427

Basic calculations (n = 12781321)

Multiplication

n×y
n×2 25562642
n×3 38343963
n×4 51125284
n×5 63906605

Division

n÷y
n÷2 6390660.5
n÷3 4260440.3333333
n÷3 3195330.25
n÷5 2556264.2

Exponentiation

ny
n2 163362166505041
n3 2.0879842893564E+21
n4 2.6687197445221E+28
n5 3.4109763713775E+35

Nth Root

y√n
2√n 3575.0973413321
3√n 233.80757673053
4√n 59.792117719078
5√n 26.382451500507

Divisors of 12781321

1, 7, 47, 53, 329, 371, 733, 2491, 5131, 17437, 34451, 38849, 241157, 271943, 1825903, 12781321

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12781320
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12781321 can be divided by 16 positive divisors. The sum of these divisors (counting 12781321) is 1, the average is 0.0625.

Base conversion 12781321

Base System Value
2 Binary 110000110000011100001001
3 Ternary 220001100200021
4 Quaternary 300300130021
5 Quinary 11233000241
6 Senary 1133540441
8 Octal 60603411
10 Decimal 12781321
12 Duodecimal 4344721
16 Hexadecimal c30709
20 Vigesimal 3jhd61
36 Base36 7ly4p

Cryptographic Hash Functions

md5 5a5aa6d7ea8192d876a2418b42454142
sha1 38ba3a677eb5cc2879171b424bbdbed263f38073
sha256 f04d951cc9393e61ac149b9d44dffe8b105dd052dd8f1252175fc49bde6ab6a4
sha512 fff263e3fcd0230671eea3069f0f690fcf602fdea1015f2db02e1d9930f9ed059dfb69d531a96a350e1821c67fba4b17d8d422ed5b3242e7ce61c61958d7d7c3
ripemd-160 fa800efeda9098adb0be7f00dff12e9cc15aab81

12781321 as geometric shapes

Circle

Radius = n
Diameter 25562642
Circumference 80307408.313546
Area 5.1321738216675E+14

Sphere

Radius = n
Volume 8.7461281390039E+21
Surface area 2.052869528667E+15
Circumference 80307408.313546

Square

Length = n
Perimeter 51125284
Area 163362166505041
Diagonal 18075517.503244

Cube

Length = n
Surface area 980172999030246
Volume 2.0879842893564E+21
Space diagonal 22137897.359847

Equilateral Triangle

Length = n
Perimeter 38343963
Area 70737893105314
Altitude 11068948.679924

Triangular Pyramid

Length = n
Surface area 70737893105314
Volume 2.4607130833581E+20
Height 6025172.5010814