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

12981818 (number)

12981818 is an even 8-digits composite number following 12981817 and preceding 12981819. In scientific notation, it is written as 1.2981818 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 6490908 positive integers (up to 12981818) that are relatively prime to 12981818.

Interesting facts

12981818 has 4 divisors, whose sum is 19472730
The reverse of 12981818 is 81818921
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2

Name

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

Notation

Scientific notation	1.2981818 × 10^7
Engineering notation	1.2981818 × 10^6

Prime Factorization of 12981818

Prime Factorization 2 × 6490909

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	12981818	Product of the distinct prime numbers

The prime factorization of 12981818 is 2 × 6490909. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 4, 22, 69, 742, 147, 5060, 9242, 70671, 84305, 360116, 592334, 1896926, 3495612, 73706770, 10082090, 585711983, 29211817, 7673667249, 9680256680

Basic calculations (n = 12981818)

Multiplication

n×y

n×2	25963636
n×3	38945454
n×4	51927272
n×5	64909090

Division

n÷y

n÷2	6490909
n÷3	4327272.6666667
n÷3	3245454.5
n÷5	2596363.6

Exponentiation

n^y

n²	168527598585124
n³	2.1877946128091E+21
n⁴	2.8401551484869E+28
n⁵	3.687037722942E+35

Nth Root

^y√n

²√n	3603.0290034914
³√n	235.02379719777
⁴√n	60.025236388467
⁵√n	26.464707798986

Divisors of 12981818

1, 2, 6490909, 12981818

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	-12981817	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 12981818 can be divided by 4 positive divisors. The sum of these divisors (counting 12981818) is 1, the average is 0.25.

Base conversion 12981818

Base	System	Value
2	Binary	110001100001011000111010
3	Ternary	220102112201002
4	Quaternary	301201120322
5	Quinary	11310404233
6	Senary	1142125002
8	Octal	61413072
10	Decimal	12981818
12	Duodecimal	4420762
16	Hexadecimal	c6163a
20	Vigesimal	412eai
36	Base36	7q8u2

Cryptographic Hash Functions

md5	c49f9d6a05d87614b0621059695c611c
sha1	599cc75f8b1ee08443be43953f7d18545793e0fa
sha256	b4013de524c46822cf3d2b126da3bf819b9d182adc9ed59e36ca888bae1e7707
sha512	29088bc8facc7c2fd452c5f2d33bae436f9481213fc6b927d665ab8385db67f96042b8d3c52b0b9738915442a776f54a781b67d0501342677992cce2d6d234cd
ripemd-160	ec224729f686c9c05a23ccddeb176e2c15d264ff

12981818 as geometric shapes

Circle

Radius = n

Diameter	25963636
Circumference	81567168.118079
Area	5.2944506564216E+14

Sphere

Radius = n

Volume	9.1642126442193E+21
Surface area	2.1177802625686E+15
Circumference	81567168.118079

Square

Length = n

Perimeter	51927272
Area	168527598585124
Diagonal	18359063.079859

Cube

Length = n

Surface area	1011165591510744
Volume	2.1877946128091E+21
Space diagonal	22485168.350612

Equilateral Triangle

Length = n

Perimeter	38945454
Area	72974590806752
Altitude	11242584.175306

Triangular Pyramid

Length = n

Surface area	72974590806752
Volume	2.5783406776012E+20
Height	6119687.6932864