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

12865981 (number)

12865981 is an odd 8-digits composite number following 12865980 and preceding 12865982. In scientific notation, it is written as 1.2865981 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 12684700 positive integers (up to 12865981) that are relatively prime to 12865981.

Interesting facts

12865981 has 4 divisors, whose sum is 13047264
The reverse of 12865981 is 18956821
Previous prime number is 71

Basic properties

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

Name

Name	twelve million eight hundred sixty-five thousand nine hundred eighty-one

Notation

Scientific notation	1.2865981 × 10^7
Engineering notation	1.2865981 × 10^6

Prime Factorization of 12865981

Prime Factorization 71 × 181211

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	12865981	Product of the distinct prime numbers

The prime factorization of 12865981 is 71 × 181211. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 3, 17, 2, 116, 875, 7798, 4359, 93933, 65961, 203109, 755609, 8841670, 6983275, 10008073, 8439740, 607149212, 787105001, 5566992207, 2422214269

Basic calculations (n = 12865981)

Multiplication

n×y

n×2	25731962
n×3	38597943
n×4	51463924
n×5	64329905

Division

n÷y

n÷2	6432990.5
n÷3	4288660.3333333
n÷3	3216495.25
n÷5	2573196.2

Exponentiation

n^y

n²	165533467092361
n³	2.1297504424744E+21
n⁴	2.7401328727618E+28
n⁵	3.5254497478428E+35

Nth Root

^y√n

²√n	3586.9180364207
³√n	234.32266709487
⁴√n	59.890884418421
⁵√n	26.417309306103

Divisors of 12865981

1, 71, 181211, 12865981

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-12865980	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12865981 can be divided by 4 positive divisors. The sum of these divisors (counting 12865981) is 1, the average is 0.25.

Base conversion 12865981

Base	System	Value
2	Binary	110001000101000110111101
3	Ternary	220012122210211
4	Quaternary	301011012331
5	Quinary	11243202411
6	Senary	1135432421
8	Octal	61050675
10	Decimal	12865981
12	Duodecimal	4385711
16	Hexadecimal	c451bd
20	Vigesimal	4084j1
36	Base36	7nrgd

Cryptographic Hash Functions

md5	9550241f0eaa0a950810379006758d39
sha1	06028a5ffa971952c67e99684e56fd3d27e575a6
sha256	52a58009d95d0d5b9e690b4a5e1067a2c41c85b3d635de816c3f303642c6be34
sha512	e732bc40f9fe3b4b146bd3711d449b21975f62209f214099070297a27bd918cf672e2998e8f9f4a16304aaf062c431c88abb76df499ec7ece0542fd0254880a5
ripemd-160	5f4eb576598924a500a12bb8c70530684879ef29

12865981 as geometric shapes

Circle

Radius = n

Diameter	25731962
Circumference	80839342.781652
Area	5.2003872414061E+14

Sphere

Radius = n

Volume	8.9210777920764E+21
Surface area	2.0801548965624E+15
Circumference	80839342.781652

Square

Length = n

Perimeter	51463924
Area	165533467092361
Diagonal	18195244.823435

Cube

Length = n

Surface area	993200802554166
Volume	2.1297504424744E+21
Space diagonal	22284532.781216

Equilateral Triangle

Length = n

Perimeter	38597943
Area	71678093839250
Altitude	11142266.390608

Triangular Pyramid

Length = n

Surface area	71678093839250
Volume	2.5099349668479E+20
Height	6065081.6078115