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

81242015 (number)

81242015 is an odd 8-digits composite number following 81242014 and preceding 81242016. In scientific notation, it is written as 8.1242015 × 10^7. The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors. There are 64745440 positive integers (up to 81242015) that are relatively prime to 81242015.

Interesting facts

81242015 has 8 divisors, whose sum is 97862688
The reverse of 81242015 is 51024218
Previous prime number is 263

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5

Name

Name	eighty-one million two hundred forty-two thousand fifteen

Notation

Scientific notation	8.1242015 × 10^7
Engineering notation	8.1242015 × 10^6

Prime Factorization of 81242015

Prime Factorization 5 × 263 × 61781

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81242015	Product of the distinct prime numbers

The prime factorization of 81242015 is 5 × 263 × 61781. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 1, 32, 38, 283, 25, 7450, 5472, 60465, 28185, 33079, 81611, 4806997, 8885301, 53389287, 73027685, 759932778, 730356565, 171148066, 9847128881

Basic calculations (n = 81242015)

Multiplication

n×y

n×2	162484030
n×3	243726045
n×4	324968060
n×5	406210075

Division

n÷y

n÷2	40621007.5
n÷3	27080671.666667
n÷3	20310503.75
n÷5	16248403

Exponentiation

n^y

n²	6600265001260225
n³	5.3621882823636E+23
n⁴	4.3563498086861E+31
n⁵	3.5391863650252E+39

Nth Root

^y√n

²√n	9013.4352496704
³√n	433.1053636533
⁴√n	94.939113381527
⁵√n	38.190569732098

Divisors of 81242015

1, 5, 263, 1315, 61781, 308905, 16248403, 81242015

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	-81242014	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 81242015 can be divided by 8 positive divisors. The sum of these divisors (counting 81242015) is 1, the average is 0.125.

Base conversion 81242015

Base	System	Value
2	Binary	100110101111010011110011111
3	Ternary	12122212112002112
4	Quaternary	10311322132133
5	Quinary	131244221030
6	Senary	12021144235
8	Octal	465723637
10	Decimal	81242015
12	Duodecimal	2325b07b
16	Hexadecimal	4d7a79f
20	Vigesimal	157f50f
36	Base36	1cdaqn

Cryptographic Hash Functions

md5	c995dffe754bfd1f2263f8a46935e065
sha1	7d3163ea3ed3d29bf97dd0b10e1778996cd5f33d
sha256	da160332ffe1ef9e9dc16d49716e2f825a45a268fd041b39d9fb708cd947a20e
sha512	bc8bcbff3a0985c924242987ba3b59018958db96fabadf26695d7d6091eae65171370badf525d8d6b5f345f9ee07f162a1657c34702947e91363bd6aa43b9d8c
ripemd-160	56d92b6f88f16b0c03d2340338b9465ce7a8467b

81242015 as geometric shapes

Circle

Radius = n

Diameter	162484030
Circumference	510458634.97366
Area	2.0735344039705E+16

Sphere

Radius = n

Volume	2.2461081753385E+24
Surface area	8.294137615882E+16
Circumference	510458634.97366

Square

Length = n

Perimeter	324968060
Area	6600265001260225
Diagonal	114893559.44752

Cube

Length = n

Surface area	39601590007561350
Volume	5.3621882823636E+23
Space diagonal	140715297.68927

Equilateral Triangle

Length = n

Perimeter	243726045
Area	2.8579985814003E+15
Altitude	70357648.844636

Triangular Pyramid

Length = n

Surface area	2.8579985814003E+15
Volume	6.3193994940972E+22
Height	38297853.149173