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

81994313 (number)

81994313 is an odd 8-digits composite number following 81994312 and preceding 81994314. In scientific notation, it is written as 8.1994313 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 81569280 positive integers (up to 81994313) that are relatively prime to 81994313.

Interesting facts

81994313 has 4 divisors, whose sum is 82419348
The reverse of 81994313 is 31349918
Previous prime number is 193

Basic properties

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

Name

Name	eighty-one million nine hundred ninety-four thousand three hundred thirteen

Notation

Scientific notation	8.1994313 × 10^7
Engineering notation	8.1994313 × 10^6

Prime Factorization of 81994313

Prime Factorization 193 × 424841

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81994313	Product of the distinct prime numbers

The prime factorization of 81994313 is 193 × 424841. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 2, 16, 75, 338, 123, 43, 134, 5518, 85596, 907762, 102499, 7446740, 2298380, 4506551, 1327212, 774574775, 811027247, 2393474787, 1175045415

Basic calculations (n = 81994313)

Multiplication

n×y

n×2	163988626
n×3	245982939
n×4	327977252
n×5	409971565

Division

n÷y

n÷2	40997156.5
n÷3	27331437.666667
n÷3	20498578.25
n÷5	16398862.6

Exponentiation

n^y

n²	6723067364341969
n³	5.5125328979194E+23
n⁴	4.519963478548E+31
n⁵	3.7061130020863E+39

Nth Root

^y√n

²√n	9055.0711206484
³√n	434.43810482182
⁴√n	95.15813743789
⁵√n	38.261037847983

Divisors of 81994313

1, 193, 424841, 81994313

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	-81994312	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 81994313 can be divided by 4 positive divisors. The sum of these divisors (counting 81994313) is 1, the average is 0.25.

Base conversion 81994313

Base	System	Value
2	Binary	100111000110010001001001001
3	Ternary	12201021202001102
4	Quaternary	10320302021021
5	Quinary	131442304223
6	Senary	12045231145
8	Octal	470621111
10	Decimal	81994313
12	Duodecimal	235624b5
16	Hexadecimal	4e32249
20	Vigesimal	15c95fd
36	Base36	1ctf7t

Cryptographic Hash Functions

md5	5cca78c0a142f046835864baa5e41ecd
sha1	fee3705239430c87964567709f39da32699444d6
sha256	8bc7ce857c6de0403112dcfc9a23c6358f3929e091b9c3c5f2f5551316a4c370
sha512	c35104376aada4fc355f5ef148f8b50b860d32079da0ab96c7105e54734d23c22ffb2adfdcdb1b05f62af9e9babcd4796b65e62a1eae6bd7f86d38c614869786
ripemd-160	9f12f36b7913a88ce8cd32c2f4cc4f82104a97e7

81994313 as geometric shapes

Circle

Radius = n

Diameter	163988626
Circumference	515185462.71388
Area	2.1121139041406E+16

Sphere

Radius = n

Volume	2.3090843806368E+24
Surface area	8.4484556165624E+16
Circumference	515185462.71388

Square

Length = n

Perimeter	327977252
Area	6723067364341969
Diagonal	115957469.48206

Cube

Length = n

Surface area	40338404186051814
Volume	5.5125328979194E+23
Space diagonal	142018316.04771

Equilateral Triangle

Length = n

Perimeter	245982939
Area	2.9111735644371E+15
Altitude	71009158.023853

Triangular Pyramid

Length = n

Surface area	2.9111735644371E+15
Volume	6.4965823227212E+22
Height	38652489.827355