12981388 (number)

12981388 is an even 8-digits composite number following 12981387 and preceding 12981389. In scientific notation, it is written as 1.2981388 × 10^7. The sum of its digits is 40. It has a total of 5 prime factors and 24 positive divisors. There are 5526144 positive integers (up to 12981388) that are relatively prime to 12981388.

Interesting facts

Basic properties

Name

Name twelve million nine hundred eighty-one thousand three hundred eighty-eight

Notation

Scientific notation 1.2981388 × 10^7
Engineering notation 1.2981388 × 10^6

Prime Factorization of 12981388

Prime Factorization 2 × 2 × 7 × 157 × 2953

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 6490694
Product of the distinct prime numbers

The prime factorization of 12981388 is 2 × 2 × 7 × 157 × 2953. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 12981388)

Multiplication

n×y
n×2 25962776
n×3 38944164
n×4 51925552
n×5 64906940

Division

n÷y
n÷2 6490694
n÷3 4327129.3333333
n÷3 3245347
n÷5 2596277.6

Exponentiation

ny
n2 168516434406544
n3 2.1875772194079E+21
n4 2.8397788665095E+28
n5 3.686427130036E+35

Nth Root

y√n
2√n 3602.9693309824
3√n 235.02120225181
4√n 60.024739324569
5√n 26.464532477238

Divisors of 12981388

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12981387
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12981388 can be divided by 24 positive divisors. The sum of these divisors (counting 12981388) is 1, the average is 0.041666666666667.

Base conversion 12981388

Base System Value
2 Binary 110001100001010010001100
3 Ternary 220102112010011
4 Quaternary 301201102030
5 Quinary 11310401023
6 Senary 1142123004
8 Octal 61412214
10 Decimal 12981388
12 Duodecimal 4420464
16 Hexadecimal c6148c
20 Vigesimal 412d98
36 Base36 7q8i4

Cryptographic Hash Functions

md5 a422490420f2fb1b7015303322614651
sha1 3687b5c7be630c891becec258771b7fa6b6cf185
sha256 eda28ea440a2c16af4d919611374f5200c307bb6a9fab31046b61ea962b583f0
sha512 ea9b4b8a6cea3f4c9d3f35a788e8d2a03d9ee9a4d60e9384ae74291b170cc686edf51372e1d1f8347610ae166ff9d1366b235c6bf7dae07828cb49d916d891ba
ripemd-160 6886069cd7f8a1a688a6540ca0666da63f6b41bb

12981388 as geometric shapes

Circle

Radius = n
Diameter 25962776
Circumference 81564466.348397
Area 5.2940999234074E+14

Sphere

Radius = n
Volume 9.1633020288696E+21
Surface area 2.117639969363E+15
Circumference 81564466.348397

Square

Length = n
Perimeter 51925552
Area 168516434406544
Diagonal 18358454.968027

Cube

Length = n
Surface area 1011098606439264
Volume 2.1875772194079E+21
Space diagonal 22484423.568765

Equilateral Triangle

Length = n
Perimeter 38944164
Area 72969756575621
Altitude 11242211.784382

Triangular Pyramid

Length = n
Surface area 72969756575621
Volume 2.5780844770209E+20
Height 6119484.9893425