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

81363971 (number)

81363971 is an odd 8-digits composite number following 81363970 and preceding 81363972. In scientific notation, it is written as 8.1363971 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 75105192 positive integers (up to 81363971) that are relatively prime to 81363971.

Interesting facts

81363971 has 4 divisors, whose sum is 87622752
The reverse of 81363971 is 17936318
Previous prime number is 13

Basic properties

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

Name

Name	eighty-one million three hundred sixty-three thousand nine hundred seventy-one

Notation

Scientific notation	8.1363971 × 10^7
Engineering notation	8.1363971 × 10^6

Prime Factorization of 81363971

Prime Factorization 13 × 6258767

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81363971	Product of the distinct prime numbers

The prime factorization of 81363971 is 13 × 6258767. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 1, 95, 39, 515, 148, 7739, 2903, 17133, 13377, 875588, 365714, 1715753, 5784562, 56574786, 52744937, 796471282, 401412655, 2004547541, 4403809457

Basic calculations (n = 81363971)

Multiplication

n×y

n×2	162727942
n×3	244091913
n×4	325455884
n×5	406819855

Division

n÷y

n÷2	40681985.5
n÷3	27121323.666667
n÷3	20340992.75
n÷5	16272794.2

Exponentiation

n^y

n²	6620095776888841
n³	5.3863728080801E+23
n⁴	4.3825668095181E+31
n⁵	3.565830387952E+39

Nth Root

^y√n

²√n	9020.1979468302
³√n	433.32197320646
⁴√n	94.974722673089
⁵√n	38.202028765863

Divisors of 81363971

1, 13, 6258767, 81363971

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	-81363970	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 81363971 can be divided by 4 positive divisors. The sum of these divisors (counting 81363971) is 1, the average is 0.25.

Base conversion 81363971

Base	System	Value
2	Binary	100110110011000010000000011
3	Ternary	12200002201101102
4	Quaternary	10312120100003
5	Quinary	131312121341
6	Senary	12023525015
8	Octal	466302003
10	Decimal	81363971
12	Duodecimal	232b976b
16	Hexadecimal	4d98403
20	Vigesimal	158a9ib
36	Base36	1cfwub

Cryptographic Hash Functions

md5	17dde5ef35b601529eb4237de6331a0a
sha1	f4efdba34094548efae42c8e4514be9a699fe399
sha256	eeeb15f468c806d49cff1952d63a2d349bd5256d5c8372b41092551a1bda419c
sha512	ce0ce45444ab9fd0ac9ebd239914ccb7c84c405c84daca9f53c7b423152bf859d24eb446824dc335ba02c5500d4db10df5bfefc4f031728e5040b7bea50e7dc6
ripemd-160	fa6eb36027a6df3411ecaf373fb488082a88866f

81363971 as geometric shapes

Circle

Radius = n

Diameter	162727942
Circumference	511224907.12099
Area	2.0797644258735E+16

Sphere

Radius = n

Volume	2.2562385657814E+24
Surface area	8.3190577034939E+16
Circumference	511224907.12099

Square

Length = n

Perimeter	325455884
Area	6620095776888841
Diagonal	115066031.27673

Cube

Length = n

Surface area	39720574661333046
Volume	5.3863728080801E+23
Space diagonal	140926531.67756

Equilateral Triangle

Length = n

Perimeter	244091913
Area	2.8665855591359E+15
Altitude	70463265.83878

Triangular Pyramid

Length = n

Surface area	2.8665855591359E+15
Volume	6.3479012309871E+22
Height	38355343.75891