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

81002018 (number)

81002018 is an even 8-digits composite number following 81002017 and preceding 81002019. In scientific notation, it is written as 8.1002018 × 10^7. The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors. There are 39988260 positive integers (up to 81002018) that are relatively prime to 81002018.

Interesting facts

81002018 has 8 divisors, whose sum is 123041280
The reverse of 81002018 is 81020018
Previous prime number is 79

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2

Name

Name	eighty-one million two thousand eighteen

Notation

Scientific notation	8.1002018 × 10^7
Engineering notation	8.1002018 × 10^6

Prime Factorization of 81002018

Prime Factorization 2 × 79 × 512671

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81002018	Product of the distinct prime numbers

The prime factorization of 81002018 is 2 × 79 × 512671. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 9, 90, 76, 408, 578, 2204, 5918, 14215, 46701, 848186, 984324, 6146878, 5617684, 94976468, 16332107, 793337226, 381603900, 4728315392, 4314613064

Basic calculations (n = 81002018)

Multiplication

n×y

n×2	162004036
n×3	243006054
n×4	324008072
n×5	405010090

Division

n÷y

n÷2	40501009
n÷3	27000672.666667
n÷3	20250504.5
n÷5	16200403.6

Exponentiation

n^y

n²	6561326920072324
n³	5.3148072128358E+23
n⁴	4.3051010952066E+31
n⁵	3.4872187640574E+39

Nth Root

^y√n

²√n	9000.1121104128
³√n	432.67846422242
⁴√n	94.868920676968
⁵√n	38.167979273542

Divisors of 81002018

1, 2, 79, 158, 512671, 1025342, 40501009, 81002018

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	-81002017	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 81002018 can be divided by 8 positive divisors. The sum of these divisors (counting 81002018) is 1, the average is 0.125.

Base conversion 81002018

Base	System	Value
2	Binary	100110100111111111000100010
3	Ternary	12122102022212202
4	Quaternary	10310333320202
5	Quinary	131214031033
6	Senary	12012053202
8	Octal	464777042
10	Decimal	81002018
12	Duodecimal	23164202
16	Hexadecimal	4d3fe22
20	Vigesimal	156550i
36	Base36	1c85k2

Cryptographic Hash Functions

md5	20071e55c0c107f8f22827fa75fa1ccf
sha1	545c4d28840f16b4fd27e25af4d695d6a7524d8f
sha256	e9870f91f606e88bf83fcfa31b28e137079e5fe76c39591a7e5ba12183ed718f
sha512	ffaba4c050010acbc0f28a68c74b3015e625d1a3888494ec39a6437a98e0a479b35682de69ffe2c1ac25a603497378ecc99238047080833c6d8a34e105418f24
ripemd-160	ad9d8af5b48c60e0ed556f8c33374f52be360eaf

81002018 as geometric shapes

Circle

Radius = n

Diameter	162004036
Circumference	508950689.3495
Area	2.06130164499E+16

Sphere

Radius = n

Volume	2.2262612393455E+24
Surface area	8.2452065799601E+16
Circumference	508950689.3495

Square

Length = n

Perimeter	324008072
Area	6561326920072324
Diagonal	114554152.43519

Cube

Length = n

Surface area	39367961520433944
Volume	5.3148072128358E+23
Space diagonal	140299610.69161

Equilateral Triangle

Length = n

Perimeter	243006054
Area	2.8411378976587E+15
Altitude	70149805.345804

Triangular Pyramid

Length = n

Surface area	2.8411378976587E+15
Volume	6.263560368159E+22
Height	38184717.478397