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

81490139 (number)

81490139 is an odd 8-digits prime number following 81490138 and preceding 81490140. In scientific notation, it is written as 8.1490139 × 10^7. The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors. There are 81490138 positive integers (up to 81490139) that are relatively prime to 81490139.

Interesting facts

81490139 has 2 divisors, whose sum is 81490140
The reverse of 81490139 is 93109418
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8

Name

Name	eighty-one million four hundred ninety thousand one hundred thirty-nine

Notation

Scientific notation	8.1490139 × 10^7
Engineering notation	8.1490139 × 10^6

Prime Factorization of 81490139

Prime Factorization 81490139

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	81490139	Product of the distinct prime numbers

The prime factorization of 81490139 is 81490139. Since it has a total of 1 prime factors.

Most popular turbo-numbers

4, 3, 56, 17, 34, 688, 6423, 4974, 70691, 93779, 158333, 39738, 358059, 6342816, 46856223, 68074939, 95399643, 25517829, 6095997415, 7086337120

Basic calculations (n = 81490139)

Multiplication

n×y

n×2	162980278
n×3	244470417
n×4	325960556
n×5	407450695

Division

n÷y

n÷2	40745069.5
n÷3	27163379.666667
n÷3	20372534.75
n÷5	16298027.8

Exponentiation

n^y

n²	6640642754239321
n³	5.4114690109231E+23
n⁴	4.4098136189431E+31
n⁵	3.5935632477177E+39

Nth Root

^y√n

²√n	9027.188875835
³√n	433.54583614166
⁴√n	95.011519700692
⁵√n	38.213869109167

Divisors of 81490139

1, 81490139

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	81490140	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	40745070	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	9027.1889312233	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999754572	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81490139 can be divided by 2 positive divisors. The sum of these divisors (counting 81490139) is 81490140, the average is 40745070.

Base conversion 81490139

Base	System	Value
2	Binary	100110110110111000011011011
3	Ternary	12200100010110022
4	Quaternary	10312313003123
5	Quinary	131330141024
6	Senary	12030341055
8	Octal	466670333
10	Decimal	81490139
12	Duodecimal	2335a78b
16	Hexadecimal	4db70db
20	Vigesimal	159656j
36	Base36	1cim6z

Cryptographic Hash Functions

md5	198c8bc279bcd43fadb7ba8f66f11a5a
sha1	d095b8e8f81565ab47a180d935768ea641a6d5e7
sha256	e1041ebf7ee625c2cce25eb0da41cd936348d09fb290554f52f0ed8b80e1cb91
sha512	9988c1dcec1996a11e1d7e3398860968ae1e44bfa18f62bbc8b02c2501bfc076aafee8ba398ce99b6cab93c1eeb7eaf7656d1af9366e0c665cf78488575f4840
ripemd-160	4cd10f66d549b214ad79df4ca52846fc500f96e5

81490139 as geometric shapes

Circle

Radius = n

Diameter	162980278
Circumference	512017644.04482
Area	2.0862194491833E+16

Sphere

Radius = n

Volume	2.266750838646E+24
Surface area	8.344877796733E+16
Circumference	512017644.04482

Square

Length = n

Perimeter	325960556
Area	6640642754239321
Diagonal	115244459.77347

Cube

Length = n

Surface area	39843856525435926
Volume	5.4114690109231E+23
Space diagonal	141145061.06385

Equilateral Triangle

Length = n

Perimeter	244470417
Area	2.8754826613142E+15
Altitude	70572530.531925

Triangular Pyramid

Length = n

Surface area	2.8754826613142E+15
Volume	6.3774773896742E+22
Height	38414819.92449