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

81682661 (number)

81682661 is an odd 8-digits composite number following 81682660 and preceding 81682662. In scientific notation, it is written as 8.1682661 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 81616524 positive integers (up to 81682661) that are relatively prime to 81682661.

Interesting facts

81682661 has 4 divisors, whose sum is 81748800
The reverse of 81682661 is 16628618
Previous prime number is 1259

Basic properties

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

Name

Name	eighty-one million six hundred eighty-two thousand six hundred sixty-one

Notation

Scientific notation	8.1682661 × 10^7
Engineering notation	8.1682661 × 10^6

Prime Factorization of 81682661

Prime Factorization 1259 × 64879

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81682661	Product of the distinct prime numbers

The prime factorization of 81682661 is 1259 × 64879. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 6, 80, 58, 649, 1, 5569, 7130, 25993, 93915, 326869, 608094, 8016398, 7555258, 30346746, 95284649, 170749848, 84635458, 3375496588, 7864396125

Basic calculations (n = 81682661)

Multiplication

n×y

n×2	163365322
n×3	245047983
n×4	326730644
n×5	408413305

Division

n÷y

n÷2	40841330.5
n÷3	27227553.666667
n÷3	20420665.25
n÷5	16336532.2

Exponentiation

n^y

n²	6672057108040921
n³	5.4499137892875E+23
n⁴	4.4516346052959E+31
n⁵	3.6362136036026E+39

Nth Root

^y√n

²√n	9037.8460376353
³√n	433.88698771226
⁴√n	95.067586682503
⁵√n	38.231908268278

Divisors of 81682661

1, 1259, 64879, 81682661

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	-81682660	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 81682661 can be divided by 4 positive divisors. The sum of these divisors (counting 81682661) is 1, the average is 0.25.

Base conversion 81682661

Base	System	Value
2	Binary	100110111100110000011100101
3	Ternary	12200200220112202
4	Quaternary	10313212003211
5	Quinary	131402321121
6	Senary	12034424245
8	Octal	467460345
10	Decimal	81682661
12	Duodecimal	23432085
16	Hexadecimal	4de60e5
20	Vigesimal	15aa6d1
36	Base36	1cmqqt

Cryptographic Hash Functions

md5	8eb25c218ff3af04a28d0db099db5a79
sha1	2157ba8789104108bd08e26e1bd1306a8b85b3e0
sha256	0bf5eafa81c3749c67b36ddbfedaca8b63b58de90f8e897dc3cc0a250ef43ac8
sha512	c0668fa52125a3c62dc657d9883030200c9901614c9e8490d079b787244c0e1bc1690e6c2f9f312df235e0ca47dc0629e4d34c2752e035b3d447db75b577e037
ripemd-160	c426a7cc1d7a2ae0befec2f3bebc1f0feb436ca8

81682661 as geometric shapes

Circle

Radius = n

Diameter	163365322
Circumference	513227295.44653
Area	2.0960885594953E+16

Sphere

Radius = n

Volume	2.2828545497498E+24
Surface area	8.3843542379812E+16
Circumference	513227295.44653

Square

Length = n

Perimeter	326730644
Area	6672057108040921
Diagonal	115516726.99692

Cube

Length = n

Surface area	40032342648245526
Volume	5.4499137892875E+23
Space diagonal	141478518.94942

Equilateral Triangle

Length = n

Perimeter	245047983
Area	2.889085475532E+15
Altitude	70739259.474712

Triangular Pyramid

Length = n

Surface area	2.889085475532E+15
Volume	6.4227849954787E+22
Height	38505575.665641