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

12891381 (number)

12891381 is an odd 8-digits composite number following 12891380 and preceding 12891382. In scientific notation, it is written as 1.2891381 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 8316960 positive integers (up to 12891381) that are relatively prime to 12891381.

Interesting facts

12891381 has 8 divisors, whose sum is 17743104
The reverse of 12891381 is 18319821
Previous prime number is 31

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

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

Notation

Scientific notation	1.2891381 × 10^7
Engineering notation	1.2891381 × 10^6

Prime Factorization of 12891381

Prime Factorization 3 × 31 × 138617

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	12891381	Product of the distinct prime numbers

The prime factorization of 12891381 is 3 × 31 × 138617. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 2, 42, 57, 105, 253, 5048, 154, 47018, 42157, 664889, 798619, 7822981, 6836718, 49693830, 73825989, 128341973, 625922122, 6849921319, 6495676313

Basic calculations (n = 12891381)

Multiplication

n×y

n×2	25782762
n×3	38674143
n×4	51565524
n×5	64456905

Division

n÷y

n÷2	6445690.5
n÷3	4297127
n÷3	3222845.25
n÷5	2578276.2

Exponentiation

n^y

n²	166187704087161
n³	2.1423890109028E+21
n⁴	2.7618352989762E+28
n⁵	3.5603871098351E+35

Nth Root

^y√n

²√n	3590.456934709
³√n	234.47676554926
⁴√n	59.920421683338
⁵√n	26.427731681336

Divisors of 12891381

1, 3, 31, 93, 138617, 415851, 4297127, 12891381

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-12891380	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12891381 can be divided by 8 positive divisors. The sum of these divisors (counting 12891381) is 1, the average is 0.125.

Base conversion 12891381

Base	System	Value
2	Binary	110001001011010011110101
3	Ternary	220020221122120
4	Quaternary	301023103311
5	Quinary	11300011011
6	Senary	1140150153
8	Octal	61132365
10	Decimal	12891381
12	Duodecimal	4398359
16	Hexadecimal	c4b4f5
20	Vigesimal	40b891
36	Base36	7ob1x

Cryptographic Hash Functions

md5	f6c53a5a15043653fbeeb9ee40a98ce3
sha1	7049ed3f227bd77db3eb0eb082bc0a3409e7e8c3
sha256	147adfce24f878b50efaa0546811664fe0d56f8af5cc35543564eb9c87619701
sha512	a86394fa8636df3983169f1778c8d4ed55a0cc6264a015cc0d19660c05a94028551e368139f0a87636d58931d13a00ed2452beea7e1fa82598f2376b3d01bb69
ripemd-160	c0a7a1990470c3d5df7b2ffd2dba0171b38ccb76

12891381 as geometric shapes

Circle

Radius = n

Diameter	25782762
Circumference	80998935.688454
Area	5.2209407027718E+14

Sphere

Radius = n

Volume	8.9740181037119E+21
Surface area	2.0883762811087E+15
Circumference	80998935.688454

Square

Length = n

Perimeter	51565524
Area	166187704087161
Diagonal	18231165.847919

Cube

Length = n

Surface area	997126224522966
Volume	2.1423890109028E+21
Space diagonal	22328526.871728

Equilateral Triangle

Length = n

Perimeter	38674143
Area	71961386768046
Altitude	11164263.435864

Triangular Pyramid

Length = n

Surface area	71961386768046
Volume	2.5248296625816E+20
Height	6077055.2826396