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

81018045 (number)

81018045 is an odd 8-digits composite number following 81018044 and preceding 81018046. In scientific notation, it is written as 8.1018045 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 43209600 positive integers (up to 81018045) that are relatively prime to 81018045.

Interesting facts

81018045 has 8 divisors, whose sum is 108024120
The reverse of 81018045 is 54081018
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	eighty-one million eighteen thousand forty-five

Notation

Scientific notation	8.1018045 × 10^7
Engineering notation	8.1018045 × 10^6

Prime Factorization of 81018045

Prime Factorization 9 × 5 × 1800401

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81018045	Product of the distinct prime numbers

The prime factorization of 81018045 is 9 × 5 × 1800401. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 8, 75, 56, 389, 473, 7452, 7508, 36345, 56597, 488003, 758342, 6543522, 7321469, 37870111, 67676212, 391484982, 113720748, 8031971560, 196572901

Basic calculations (n = 81018045)

Multiplication

n×y

n×2	162036090
n×3	243054135
n×4	324072180
n×5	405090225

Division

n÷y

n÷2	40509022.5
n÷3	27006015
n÷3	20254511.25
n÷5	16203609

Exponentiation

n^y

n²	6563923615622025
n³	5.3179625886703E+23
n⁴	4.3085093231721E+31
n⁵	3.4906700222767E+39

Nth Root

^y√n

²√n	9001.0024441725
³√n	432.70699882199
⁴√n	94.873613002629
⁵√n	38.169489531708

Divisors of 81018045

1, 5, 9, 45, 1800401, 9002005, 16203609, 81018045

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	-81018044	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 81018045 can be divided by 8 positive divisors. The sum of these divisors (counting 81018045) is 1, the average is 0.125.

Base conversion 81018045

Base	System	Value
2	Binary	100110101000011110010111101
3	Ternary	12122110010212100
4	Quaternary	10311003302331
5	Quinary	131220034140
6	Senary	12012255313
8	Octal	465036275
10	Decimal	81018045
12	Duodecimal	23171539
16	Hexadecimal	4d43cbd
20	Vigesimal	1567525
36	Base36	1c8hx9

Cryptographic Hash Functions

md5	ac26117eac494dff465fd7787b1369bc
sha1	f8475d811b27aae6456fcf054261a88333747f06
sha256	adcebfd80165c190866baf553328245cdf25a99b0aba496ff8746bca2ec6f1e4
sha512	1a3199bcad923ecf99ca277db706a03dad22b59fcc942c143ad0dea9ecc59de3fb4e0120179cc98113379395db696f2d056069c6b7d655f410c42052de5cc5d0
ripemd-160	1ec4f50dae4a4afb8959c3ca42a673b50012d576

81018045 as geometric shapes

Circle

Radius = n

Diameter	162036090
Circumference	509051389.96041
Area	2.0621174209563E+16

Sphere

Radius = n

Volume	2.2275829600843E+24
Surface area	8.2484696838251E+16
Circumference	509051389.96041

Square

Length = n

Perimeter	324072180
Area	6563923615622025
Diagonal	114576818.03595

Cube

Length = n

Surface area	39383541693732150
Volume	5.3179625886703E+23
Space diagonal	140327370.2699

Equilateral Triangle

Length = n

Perimeter	243054135
Area	2.8422622998146E+15
Altitude	70163685.134951

Triangular Pyramid

Length = n

Surface area	2.8422622998146E+15
Volume	6.2672790142419E+22
Height	38192272.678651