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

81640368 (number)

81640368 is an even 8-digits composite number following 81640367 and preceding 81640369. In scientific notation, it is written as 8.1640368 × 10^7. The sum of its digits is 36. It has a total of 6 prime factors and 20 positive divisors. There are 27213408 positive integers (up to 81640368) that are relatively prime to 81640368.

Interesting facts

81640368 has 20 divisors, whose sum is 175753880
The reverse of 81640368 is 86304618
Previous prime number is 9

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9

Name

Name	eighty-one million six hundred forty thousand three hundred sixty-eight

Notation

Scientific notation	8.1640368 × 10^7
Engineering notation	8.1640368 × 10^6

Prime Factorization of 81640368

Prime Factorization 2 × 2 × 2 × 2 × 9 × 566947

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	6	Total number of prime factors
rad	Radical	10205046	Product of the distinct prime numbers

The prime factorization of 81640368 is 2 × 2 × 2 × 2 × 9 × 566947. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 5, 3, 27, 706, 806, 9607, 8987, 31785, 9581, 786642, 362751, 5929588, 1934002, 46724323, 90503775, 428959929, 330066699, 9594047792, 502426480

Basic calculations (n = 81640368)

Multiplication

n×y

n×2	163280736
n×3	244921104
n×4	326561472
n×5	408201840

Division

n÷y

n÷2	40820184
n÷3	27213456
n÷3	20410092
n÷5	16328073.6

Exponentiation

n^y

n²	6665149687175424
n³	5.4414527323609E+23
n⁴	4.4424220352455E+31
n⁵	3.6268096976875E+39

Nth Root

^y√n

²√n	9035.50596259
³√n	433.81208993035
⁴√n	95.055278457275
⁵√n	38.227948365249

Divisors of 81640368

1, 2, 4, 8, 9, 16, 18, 36, 72, 144, 566947, 1133894, 2267788, 4535576, 5102523, 9071152, 10205046, 20410092, 40820184, 81640368

20 divisors

τ	Total Divisors	20	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81640367	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.05	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	20	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81640368 can be divided by 20 positive divisors. The sum of these divisors (counting 81640368) is 1, the average is 0.05.

Base conversion 81640368

Base	System	Value
2	Binary	100110111011011101110110000
3	Ternary	12200121202112100
4	Quaternary	10313123232300
5	Quinary	131344442433
6	Senary	12033500400
8	Octal	467335660
10	Decimal	81640368
12	Duodecimal	23411700
16	Hexadecimal	4ddbbb0
20	Vigesimal	15a50i8
36	Base36	1clu40

Cryptographic Hash Functions

md5	c55e6b833a80777232e2a582c6e85089
sha1	ae1a4b24baaa254c285a79982ad6c4354e089094
sha256	6f452295165bce01ffc3a5a055a2215efb61dd2fdd01157cfac8ff04d30158c5
sha512	ddb0c94a251a03463c87c65bc6913d48a8c96b87535d76e9c59a5cb952088acf06ff009b790b5725a03342a063bc04ba90fd92aab5303e94c21fc20336d76c05
ripemd-160	0622db3b51099abbe757fec4e3d2461de2cedea8

81640368 as geometric shapes

Circle

Radius = n

Diameter	163280736
Circumference	512961560.69033
Area	2.0939185292307E+16

Sphere

Radius = n

Volume	2.2793103905121E+24
Surface area	8.3756741169226E+16
Circumference	512961560.69033

Square

Length = n

Perimeter	326561472
Area	6665149687175424
Diagonal	115456915.66273

Cube

Length = n

Surface area	39990898123052544
Volume	5.4414527323609E+23
Space diagonal	141405265.32462

Equilateral Triangle

Length = n

Perimeter	244921104
Area	2.8860944745599E+15
Altitude	70702632.66231

Triangular Pyramid

Length = n

Surface area	2.8860944745599E+15
Volume	6.4128135442641E+22
Height	38485638.554243