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

81388162 (number)

81388162 is an even 8-digits composite number following 81388161 and preceding 81388163. In scientific notation, it is written as 8.1388162 × 10^7. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 40677252 positive integers (up to 81388162) that are relatively prime to 81388162.

Interesting facts

81388162 has 8 divisors, whose sum is 122132736
The reverse of 81388162 is 26188318
Previous prime number is 13903

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1

Name

Name	eighty-one million three hundred eighty-eight thousand one hundred sixty-two

Notation

Scientific notation	8.1388162 × 10^7
Engineering notation	8.1388162 × 10^6

Prime Factorization of 81388162

Prime Factorization 2 × 13903 × 2927

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81388162	Product of the distinct prime numbers

The prime factorization of 81388162 is 2 × 13903 × 2927. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 5, 59, 84, 621, 561, 5148, 8770, 19547, 80010, 363236, 385781, 5236021, 2408172, 36571481, 2197058, 82519609, 461050481, 5003842572, 7320381624

Basic calculations (n = 81388162)

Multiplication

n×y

n×2	162776324
n×3	244164486
n×4	325552648
n×5	406940810

Division

n÷y

n÷2	40694081
n÷3	27129387.333333
n÷3	20347040.5
n÷5	16277632.4

Exponentiation

n^y

n²	6624032913738244
n³	5.3911786387666E+23
n⁴	4.3877812042288E+31
n⁵	3.5711344747033E+39

Nth Root

^y√n

²√n	9021.5387822699
³√n	433.36491380625
⁴√n	94.981781317629
⁵√n	38.204300128433

Divisors of 81388162

1, 2, 2927, 5854, 13903, 27806, 40694081, 81388162

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	-81388161	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 81388162 can be divided by 8 positive divisors. The sum of these divisors (counting 81388162) is 1, the average is 0.125.

Base conversion 81388162

Base	System	Value
2	Binary	100110110011110001010000010
3	Ternary	12200010221120101
4	Quaternary	10312132022002
5	Quinary	131313410122
6	Senary	12024233014
8	Octal	466361202
10	Decimal	81388162
12	Duodecimal	2330b76a
16	Hexadecimal	4d9e282
20	Vigesimal	158da82
36	Base36	1cgfia

Cryptographic Hash Functions

md5	2e0aebee3f40780161300513cb37f5da
sha1	c17a2c042e96ef46de802263c424a7fc90201f9b
sha256	ea0eaa2beba18041c7aa0179d06cae0457b4575e4ff6641ad6f6054ab12366ff
sha512	cdd02efe13cfaa9207a690b79493d1be2442639194004d27252030057b09707ccd50a5849cf4a624ad99a16426366406cae0abd14dc6b6ddca6c47658957e1fc
ripemd-160	7ba9a4facec518166e06ed3ed3ade3fe72f31d97

81388162 as geometric shapes

Circle

Radius = n

Diameter	162776324
Circumference	511376903.65675
Area	2.0810013138937E+16

Sphere

Radius = n

Volume	2.2582516274319E+24
Surface area	8.3240052555748E+16
Circumference	511376903.65675

Square

Length = n

Perimeter	325552648
Area	6624032913738244
Diagonal	115100242.51702

Cube

Length = n

Surface area	39744197482429464
Volume	5.3911786387666E+23
Space diagonal	140968431.71865

Equilateral Triangle

Length = n

Perimeter	244164486
Area	2.8682903894008E+15
Altitude	70484215.859323

Triangular Pyramid

Length = n

Surface area	2.8682903894008E+15
Volume	6.3535649567665E+22
Height	38366747.505673