Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

12891388 (number)

12891388 is an even 8-digits composite number following 12891387 and preceding 12891389. In scientific notation, it is written as 1.2891388 × 10^7. The sum of its digits is 40. It has a total of 3 prime factors and 6 positive divisors. There are 6445692 positive integers (up to 12891388) that are relatively prime to 12891388.

Interesting facts

12891388 has 6 divisors, whose sum is 22559936
The reverse of 12891388 is 88319821
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4

Name

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

Notation

Scientific notation	1.2891388 × 10^7
Engineering notation	1.2891388 × 10^6

Prime Factorization of 12891388

Prime Factorization 2 × 2 × 3222847

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	6445694	Product of the distinct prime numbers

The prime factorization of 12891388 is 2 × 2 × 3222847. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 4, 53, 66, 630, 241, 5359, 7422, 68031, 68159, 728196, 72695, 9324326, 5805217, 86579902, 52699670, 877377470, 765448382, 9024934357, 6793800339

Basic calculations (n = 12891388)

Multiplication

n×y

n×2	25782776
n×3	38674164
n×4	51565552
n×5	64456940

Division

n÷y

n÷2	6445694
n÷3	4297129.3333333
n÷3	3222847
n÷5	2578277.6

Exponentiation

n^y

n²	166187884566544
n³	2.1423925008465E+21
n⁴	2.7618412976703E+28
n⁵	3.5603967762691E+35

Nth Root

^y√n

²√n	3590.4579095152
³√n	234.47680798942
⁴√n	59.92042981751
⁵√n	26.427734551378

Divisors of 12891388

1, 2, 4, 3222847, 6445694, 12891388

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-12891387	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12891388 can be divided by 6 positive divisors. The sum of these divisors (counting 12891388) is 1, the average is 0.16666666666667.

Base conversion 12891388

Base	System	Value
2	Binary	110001001011010011111100
3	Ternary	220020221122211
4	Quaternary	301023103330
5	Quinary	11300011023
6	Senary	1140150204
8	Octal	61132374
10	Decimal	12891388
12	Duodecimal	4398364
16	Hexadecimal	c4b4fc
20	Vigesimal	40b898
36	Base36	7ob24

Cryptographic Hash Functions

md5	364fb25af9bb96d9314453905cd99a5c
sha1	78d9d726985a46f817c6c37e92e69e92132522fc
sha256	d7515bad328fbcb24fab30154d3313d7ac1d22ebf1d6dedb74797d9825827b2a
sha512	ecbc1da2b23ca0d0121517da000d263882c327fcec19cf6494fded6ac34078d8ac09631a26cf651531f3e0ae55cd5f8431f6d80f33f8946f8f8e5417a1470a33
ripemd-160	c410cc2b5f5ba9f3d8c1243fe853e53b101d780a

12891388 as geometric shapes

Circle

Radius = n

Diameter	25782776
Circumference	80998979.670751
Area	5.2209463726988E+14

Sphere

Radius = n

Volume	8.9740327223538E+21
Surface area	2.0883785490795E+15
Circumference	80998979.670751

Square

Length = n

Perimeter	51565552
Area	166187884566544
Diagonal	18231175.747414

Cube

Length = n

Surface area	997127307399264
Volume	2.1423925008465E+21
Space diagonal	22328538.996084

Equilateral Triangle

Length = n

Perimeter	38674164
Area	71961464917911
Altitude	11164269.498042

Triangular Pyramid

Length = n

Surface area	71961464917911
Volume	2.5248337755196E+20
Height	6077058.5824713