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

81020312 (number)

81020312 is an even 8-digits composite number following 81020311 and preceding 81020313. In scientific notation, it is written as 8.1020312 × 10^7. The sum of its digits is 17. It has a total of 4 prime factors and 8 positive divisors. There are 40510152 positive integers (up to 81020312) that are relatively prime to 81020312.

Interesting facts

81020312 has 8 divisors, whose sum is 151913100
The reverse of 81020312 is 21302018
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 17
Digital Root 8

Name

Name	eighty-one million twenty thousand three hundred twelve

Notation

Scientific notation	8.1020312 × 10^7
Engineering notation	8.1020312 × 10^6

Prime Factorization of 81020312

Prime Factorization 2 × 2 × 2 × 10127539

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	20255078	Product of the distinct prime numbers

The prime factorization of 81020312 is 2 × 2 × 2 × 10127539. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 2, 46, 86, 240, 768, 2968, 2603, 82612, 99531, 62538, 69914, 5802473, 4504962, 85974177, 58578183, 165555959, 442303757, 8924307083, 5182476817

Basic calculations (n = 81020312)

Multiplication

n×y

n×2	162040624
n×3	243060936
n×4	324081248
n×5	405101560

Division

n÷y

n÷2	40510156
n÷3	27006770.666667
n÷3	20255078
n÷5	16204062.4

Exponentiation

n^y

n²	6564290956577344
n³	5.3184090136067E+23
n⁴	4.3089915762603E+31
n⁵	3.4911584191398E+39

Nth Root

^y√n

²√n	9001.1283737096
³√n	432.7110347032
⁴√n	94.874276670284
⁵√n	38.169703136626

Divisors of 81020312

1, 2, 4, 8, 10127539, 20255078, 40510156, 81020312

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	-81020311	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 81020312 can be divided by 8 positive divisors. The sum of these divisors (counting 81020312) is 1, the average is 0.125.

Base conversion 81020312

Base	System	Value
2	Binary	100110101000100010110011000
3	Ternary	12122110020222022
4	Quaternary	10311010112120
5	Quinary	131220122222
6	Senary	12012314012
8	Octal	465042630
10	Decimal	81020312
12	Duodecimal	23172908
16	Hexadecimal	4d44598
20	Vigesimal	1567afc
36	Base36	1c8jo8

Cryptographic Hash Functions

md5	4b71976243d93a11a9be5cf18c80fc0c
sha1	c6a339e91f22a5c92681d3de93f059839a4eb5bb
sha256	a33b9c03c3dac61cbf26b77299f482cf1845814d7ad8d6e852c2562acb3d9ad7
sha512	ea3538e664ce0101e661ec55b773901b291e03819eb8e71dfbef50bbe0cda61c87dbf37d98847adeb61c35d549861e2d7333d2d8fa2392f6fffcec61597637a1
ripemd-160	c053c9b44d6ed4fdccfeea2e65db421cddb65a1e

81020312 as geometric shapes

Circle

Radius = n

Diameter	162040624
Circumference	509065633.94151
Area	2.0622328245209E+16

Sphere

Radius = n

Volume	2.2277699581244E+24
Surface area	8.2489312980837E+16
Circumference	509065633.94151

Square

Length = n

Perimeter	324081248
Area	6564290956577344
Diagonal	114580024.0581

Cube

Length = n

Surface area	39385745739464064
Volume	5.3184090136067E+23
Space diagonal	140331296.82908

Equilateral Triangle

Length = n

Perimeter	243060936
Area	2.8424213631142E+15
Altitude	70165648.414541

Triangular Pyramid

Length = n

Surface area	2.8424213631142E+15
Volume	6.267805131075E+22
Height	38193341.3527