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

81090139 (number)

81090139 is an odd 8-digits composite number following 81090138 and preceding 81090140. In scientific notation, it is written as 8.1090139 × 10^7. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 74697600 positive integers (up to 81090139) that are relatively prime to 81090139.

Interesting facts

81090139 has 8 divisors, whose sum is 87508512
The reverse of 81090139 is 93109018
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

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

Notation

Scientific notation	8.1090139 × 10^7
Engineering notation	8.1090139 × 10^6

Prime Factorization of 81090139

Prime Factorization 503 × 13 × 12401

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81090139	Product of the distinct prime numbers

The prime factorization of 81090139 is 503 × 13 × 12401. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 6, 67, 68, 676, 174, 2957, 7884, 81606, 98718, 969636, 62858, 5894737, 3893268, 13327834, 45548381, 649017105, 761637414, 2208576235, 3985345596

Basic calculations (n = 81090139)

Multiplication

n×y

n×2	162180278
n×3	243270417
n×4	324360556
n×5	405450695

Division

n÷y

n÷2	40545069.5
n÷3	27030046.333333
n÷3	20272534.75
n÷5	16218027.8

Exponentiation

n^y

n²	6575610643039321
n³	5.3321718105394E+23
n⁴	4.3238655328852E+31
n⁵	3.5062285707897E+39

Nth Root

^y√n

²√n	9005.0063298145
³√n	432.8353090431
⁴√n	94.894711811642
⁵√n	38.176280147866

Divisors of 81090139

1, 13, 503, 6539, 12401, 161213, 6237703, 81090139

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	-81090138	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 81090139 can be divided by 8 positive divisors. The sum of these divisors (counting 81090139) is 1, the average is 0.125.

Base conversion 81090139

Base	System	Value
2	Binary	100110101010101011001011011
3	Ternary	12122120210202111
4	Quaternary	10311111121123
5	Quinary	131224341024
6	Senary	12014013151
8	Octal	465253133
10	Decimal	81090139
12	Duodecimal	231a71b7
16	Hexadecimal	4d5565b
20	Vigesimal	156g56j
36	Base36	1ca1jv

Cryptographic Hash Functions

md5	a97b60395e614704ec4af1315bf37ebb
sha1	b5ad2fddef138acfccfb87fe3738c05bca758fed
sha256	33d028d7e1a8ce88534da3300b96af56c799fe84738e8bef90e6120f045c3662
sha512	f0852f92fe8366994af92df55574ba4428959c9d5df274328229a41952dbcbcc8f08db697f1cc8b991a5bac0d61fe621382e59ed9ffff10fa0d7d5931b8d4acf
ripemd-160	2adf4e481c53a64b279f8a90abd4f1c913de264e

81090139 as geometric shapes

Circle

Radius = n

Diameter	162180278
Circumference	509504369.92195
Area	2.0657890089039E+16

Sphere

Radius = n

Volume	2.2335349050225E+24
Surface area	8.2631560356157E+16
Circumference	509504369.92195

Square

Length = n

Perimeter	324360556
Area	6575610643039321
Diagonal	114678774.34852

Cube

Length = n

Surface area	39453663858235926
Volume	5.3321718105394E+23
Space diagonal	140452240.74082

Equilateral Triangle

Length = n

Perimeter	243270417
Area	2.8473229311337E+15
Altitude	70226120.370411

Triangular Pyramid

Length = n

Surface area	2.8473229311337E+15
Volume	6.2840247428069E+22
Height	38226258.116173