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

81686876 (number)

81686876 is an even 8-digits composite number following 81686875 and preceding 81686877. In scientific notation, it is written as 8.1686876 × 10^7. The sum of its digits is 50. It has a total of 3 prime factors and 6 positive divisors. There are 40843436 positive integers (up to 81686876) that are relatively prime to 81686876.

Interesting facts

81686876 has 6 divisors, whose sum is 142952040
The reverse of 81686876 is 67868618
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 50
Digital Root 5

Name

Name	eighty-one million six hundred eighty-six thousand eight hundred seventy-six

Notation

Scientific notation	8.1686876 × 10^7
Engineering notation	8.1686876 × 10^6

Prime Factorization of 81686876

Prime Factorization 2 × 2 × 20421719

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	40843438	Product of the distinct prime numbers

The prime factorization of 81686876 is 2 × 2 × 20421719. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 7, 79, 5, 122, 221, 5825, 62, 45072, 21312, 402560, 734390, 619601, 426268, 55265877, 36274690, 370312759, 520274142, 9732868075, 7248913358

Basic calculations (n = 81686876)

Multiplication

n×y

n×2	163373752
n×3	245060628
n×4	326747504
n×5	408434380

Division

n÷y

n÷2	40843438
n÷3	27228958.666667
n÷3	20421719
n÷5	16337375.2

Exponentiation

n^y

n²	6672745710639376
n³	5.4507575144453E+23
n⁴	4.4525535318856E+31
n⁵	3.637151882425E+39

Nth Root

^y√n

²√n	9038.0792207194
³√n	433.89445074939
⁴√n	95.06881308147
⁵√n	38.23230282978

Divisors of 81686876

1, 2, 4, 20421719, 40843438, 81686876

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81686875	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81686876 can be divided by 6 positive divisors. The sum of these divisors (counting 81686876) is 1, the average is 0.16666666666667.

Base conversion 81686876

Base	System	Value
2	Binary	100110111100111000101011100
3	Ternary	12200201010022212
4	Quaternary	10313213011130
5	Quinary	131402440001
6	Senary	12034455552
8	Octal	467470534
10	Decimal	81686876
12	Duodecimal	234345b8
16	Hexadecimal	4de715c
20	Vigesimal	15aah3g
36	Base36	1cmtzw

Cryptographic Hash Functions

md5	01fd267e6d39d6b0415ccffe09c88cad
sha1	b46f0f1769b163bd71da76e3659cf5aa807e3276
sha256	a7c6863a6ad49270024c41a61642fed0a3c44a31a4672c6478854836e786b3d2
sha512	2f9481b002bf43efe262c059ba863365a05d03509bace0ab9702209b3f9bca105b7e40f7722250f1f67072563c46973eb7271cc289d86ed2ab6f18b4a799b9d0
ripemd-160	d2c2a100ce16c0e5da577bb322151a1fde529f2e

81686876 as geometric shapes

Circle

Radius = n

Diameter	163373752
Circumference	513253779.0726
Area	2.0963048903817E+16

Sphere

Radius = n

Volume	2.2832079685174E+24
Surface area	8.385219561527E+16
Circumference	513253779.0726

Square

Length = n

Perimeter	326747504
Area	6672745710639376
Diagonal	115522687.90709

Cube

Length = n

Surface area	40036474263836256
Volume	5.4507575144453E+23
Space diagonal	141485819.54358

Equilateral Triangle

Length = n

Perimeter	245060628
Area	2.8893836492037E+15
Altitude	70742909.771789

Triangular Pyramid

Length = n

Surface area	2.8893836492037E+15
Volume	6.423779335113E+22
Height	38507562.635696