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

12981918 (number)

12981918 is an even 8-digits composite number following 12981917 and preceding 12981919. In scientific notation, it is written as 1.2981918 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 4327304 positive integers (up to 12981918) that are relatively prime to 12981918.

Interesting facts

12981918 has 8 divisors, whose sum is 25963848
The reverse of 12981918 is 81918921
Previous prime number is 3

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3

Name

Name	twelve million nine hundred eighty-one thousand nine hundred eighteen

Notation

Scientific notation	1.2981918 × 10^7
Engineering notation	1.2981918 × 10^6

Prime Factorization of 12981918

Prime Factorization 2 × 3 × 2163653

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	12981918	Product of the distinct prime numbers

The prime factorization of 12981918 is 2 × 3 × 2163653. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 7, 79, 3, 256, 637, 694, 5779, 16254, 13280, 599500, 393357, 1764654, 6349150, 44443510, 59699685, 222564941, 413958596, 378800558, 4291180511

Basic calculations (n = 12981918)

Multiplication

n×y

n×2	25963836
n×3	38945754
n×4	51927672
n×5	64909590

Division

n÷y

n÷2	6490959
n÷3	4327306
n÷3	3245479.5
n÷5	2596383.6

Exponentiation

n^y

n²	168530194958724
n³	2.1878451714782E+21
n⁴	2.8402426612826E+28
n⁵	3.6871797328872E+35

Nth Root

^y√n

²√n	3603.0428806774
³√n	235.02440066536
⁴√n	60.025351982953
⁵√n	26.46474857082

Divisors of 12981918

1, 2, 3, 6, 2163653, 4327306, 6490959, 12981918

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	-12981917	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 12981918 can be divided by 8 positive divisors. The sum of these divisors (counting 12981918) is 1, the average is 0.125.

Base conversion 12981918

Base	System	Value
2	Binary	110001100001011010011110
3	Ternary	220102112211210
4	Quaternary	301201122132
5	Quinary	11310410133
6	Senary	1142125250
8	Octal	61413236
10	Decimal	12981918
12	Duodecimal	4420826
16	Hexadecimal	c6169e
20	Vigesimal	412efi
36	Base36	7q8wu

Cryptographic Hash Functions

md5	52c099ebda482356f574ce5c5c64468f
sha1	80007934bd6f5654bd451c3d1b17504dccd2e9e3
sha256	f94b150c429467e3a601a37e7e1783a657b08953be3971043699b6b289d23d9d
sha512	f53dda9c1b9ee3c37f12fe555809622488e839a48da40cac726d339dae06921b582646621ecd373aba0a73e93e283c162e9555e1cea65efdeb2c9be6ed521f34
ripemd-160	1bc8ca3f258f023920fc33333734f8edae36890f

12981918 as geometric shapes

Circle

Radius = n

Diameter	25963836
Circumference	81567796.43661
Area	5.2945322239038E+14

Sphere

Radius = n

Volume	9.164424423877E+21
Surface area	2.1178128895615E+15
Circumference	81567796.43661

Square

Length = n

Perimeter	51927672
Area	168530194958724
Diagonal	18359204.501215

Cube

Length = n

Surface area	1011181169752344
Volume	2.1878451714782E+21
Space diagonal	22485341.555693

Equilateral Triangle

Length = n

Perimeter	38945754
Area	72975715069500
Altitude	11242670.777846

Triangular Pyramid

Length = n

Surface area	72975715069500
Volume	2.5784002615641E+20
Height	6119734.8337385