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

13181981 (number)

13181981 is an odd 8-digits composite number following 13181980 and preceding 13181982. In scientific notation, it is written as 1.3181981 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 13170972 positive integers (up to 13181981) that are relatively prime to 13181981.

Interesting facts

13181981 has 4 divisors, whose sum is 13192992
The reverse of 13181981 is 18918131
Previous prime number is 1367

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	thirteen million one hundred eighty-one thousand nine hundred eighty-one

Notation

Scientific notation	1.3181981 × 10^7
Engineering notation	1.3181981 × 10^6

Prime Factorization of 13181981

Prime Factorization 1367 × 9643

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	13181981	Product of the distinct prime numbers

The prime factorization of 13181981 is 1367 × 9643. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 9, 78, 96, 839, 432, 1277, 6536, 7956, 72427, 812167, 330709, 2040180, 4746536, 19394248, 63475142, 394637936, 91006550, 3605355424, 9821295853

Basic calculations (n = 13181981)

Multiplication

n×y

n×2	26363962
n×3	39545943
n×4	52727924
n×5	65909905

Division

n÷y

n÷2	6590990.5
n÷3	4393993.6666667
n÷3	3295495.25
n÷5	2636396.2

Exponentiation

n^y

n²	173764623084361
n³	2.2905619599702E+21
n⁴	3.019414423565E+28
n⁵	3.980186356256E+35

Nth Root

^y√n

²√n	3630.6997948054
³√n	236.22556357275
⁴√n	60.255288521468
⁵√n	26.545819451787

Divisors of 13181981

1, 1367, 9643, 13181981

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	-13181980	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 13181981 can be divided by 4 positive divisors. The sum of these divisors (counting 13181981) is 1, the average is 0.25.

Base conversion 13181981

Base	System	Value
2	Binary	110010010010010000011101
3	Ternary	220210201021112
4	Quaternary	302102100131
5	Quinary	11333310411
6	Senary	1150311405
8	Octal	62222035
10	Decimal	13181981
12	Duodecimal	44b8565
16	Hexadecimal	c9241d
20	Vigesimal	427ej1
36	Base36	7uja5

Cryptographic Hash Functions

md5	77e0c41d35ba7b4c6f83559897e5c0ae
sha1	60bb11946defa43b09d20c538b1b0cd5df1e6e58
sha256	4c06e4a66210179be0acdb8d65b8d1ee49ae7bae50ba756bc67775624285f4ce
sha512	c6cf76bfeeb982dbdea8b1a466b2c3238d90525c5ee1f0a99a8d01995405b8abeba8ef5d9396dc64513afc055ffd69a5b0d0bb4473b2264ea1c210f29e5b8eb9
ripemd-160	a18ba44914182f97eef85d8d6de6094aea30b883

13181981 as geometric shapes

Circle

Radius = n

Diameter	26363962
Circumference	82824829.33872
Area	5.4589766333563E+14

Sphere

Radius = n

Volume	9.5946835013795E+21
Surface area	2.1835906533425E+15
Circumference	82824829.33872

Square

Length = n

Perimeter	52727924
Area	173764623084361
Diagonal	18642136.309144

Cube

Length = n

Surface area	1042587738506166
Volume	2.2905619599702E+21
Space diagonal	22831860.836408

Equilateral Triangle

Length = n

Perimeter	39545943
Area	75242288935042
Altitude	11415930.418204

Triangular Pyramid

Length = n

Surface area	75242288935042
Volume	2.6994531577048E+20
Height	6214045.4363815