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

81640450 (number)

81640450 is an even 8-digits composite number following 81640449 and preceding 81640451. In scientific notation, it is written as 8.1640450 × 10^7. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 32656160 positive integers (up to 81640450) that are relatively prime to 81640450.

Interesting facts

81640450 has 8 divisors, whose sum is 127359180
The reverse of 81640450 is 05404618
Previous prime number is 25

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	eighty-one million six hundred forty thousand four hundred fifty

Notation

Scientific notation	8.1640450 × 10^7
Engineering notation	8.1640450 × 10^6

Prime Factorization of 81640450

Prime Factorization 2 × 25 × 1632809

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81640450	Product of the distinct prime numbers

The prime factorization of 81640450 is 2 × 25 × 1632809. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 6, 60, 10, 533, 180, 3252, 8382, 91922, 48839, 437889, 719247, 3081311, 6677994, 55850789, 46260421, 843949170, 746765965, 4801016593, 1300623321

Basic calculations (n = 81640450)

Multiplication

n×y

n×2	163280900
n×3	244921350
n×4	326561800
n×5	408202250

Division

n÷y

n÷2	40820225
n÷3	27213483.333333
n÷3	20410112.5
n÷5	16328090

Exponentiation

n^y

n²	6665163076202500
n³	5.4414691286456E+23
n⁴	4.4424398832373E+31
n⁵	3.6268279116544E+39

Nth Root

^y√n

²√n	9035.5105002429
³√n	433.81223517132
⁴√n	95.055302325767
⁵√n	38.227956044515

Divisors of 81640450

1, 2, 25, 50, 1632809, 3265618, 40820225, 81640450

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81640449	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81640450 can be divided by 8 positive divisors. The sum of these divisors (counting 81640450) is 1, the average is 0.125.

Base conversion 81640450

Base	System	Value
2	Binary	100110111011011110000000010
3	Ternary	12200121202122101
4	Quaternary	10313123300002
5	Quinary	131344443300
6	Senary	12033501014
8	Octal	467336002
10	Decimal	81640450
12	Duodecimal	2341176a
16	Hexadecimal	4ddbc02
20	Vigesimal	15a512a
36	Base36	1clu6a

Cryptographic Hash Functions

md5	be7632ac24c87497b0d03b7438857165
sha1	f082085dfd1ed108eb2658c04a157517ac24bd68
sha256	cbb7b45f2d0856cba410ce441fb7e5fc551113635d3a437111c72249dd3bee89
sha512	aecf1505f819e72ce902031512886325e8a271a60cf8ebddb514b9ef559fe7f9fa372074fe5ba8dc22450e763475ce1cb82f2744cddfa758c089f6f4d1e62e59
ripemd-160	e812eee9cfb295c2219958649e799e5f764f2461

81640450 as geometric shapes

Circle

Radius = n

Diameter	163280900
Circumference	512962075.91153
Area	2.0939227355176E+16

Sphere

Radius = n

Volume	2.2793172585718E+24
Surface area	8.3756909420703E+16
Circumference	512962075.91153

Square

Length = n

Perimeter	326561800
Area	6665163076202500
Diagonal	115457031.62824

Cube

Length = n

Surface area	39990978457215000
Volume	5.4414691286456E+23
Space diagonal	141405407.35279

Equilateral Triangle

Length = n

Perimeter	244921350
Area	2.8861002721787E+15
Altitude	70702703.676393

Triangular Pyramid

Length = n

Surface area	2.8861002721787E+15
Volume	6.4128328674709E+22
Height	38485677.209414