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

81234513 (number)

81234513 is an odd 8-digits composite number following 81234512 and preceding 81234514. In scientific notation, it is written as 8.1234513 × 10^7. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 54156336 positive integers (up to 81234513) that are relatively prime to 81234513.

Interesting facts

81234513 has 4 divisors, whose sum is 90260580
The reverse of 81234513 is 31543218
Previous prime number is 9

Basic properties

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

Name

Name	eighty-one million two hundred thirty-four thousand five hundred thirteen

Notation

Scientific notation	8.1234513 × 10^7
Engineering notation	8.1234513 × 10^6

Prime Factorization of 81234513

Prime Factorization 9 × 9026057

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81234513	Product of the distinct prime numbers

The prime factorization of 81234513 is 9 × 9026057. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 5, 23, 6, 62, 693, 2545, 6059, 87175, 70249, 852336, 786774, 6218177, 6408333, 73754078, 22254327, 907697851, 729438522, 5639169227, 5487466316

Basic calculations (n = 81234513)

Multiplication

n×y

n×2	162469026
n×3	243703539
n×4	324938052
n×5	406172565

Division

n÷y

n÷2	40617256.5
n÷3	27078171
n÷3	20308628.25
n÷5	16246902.6

Exponentiation

n^y

n²	6599046102347169
n³	5.3607029638872E+23
n⁴	4.3547409460903E+31
n⁵	3.5375525999681E+39

Nth Root

^y√n

²√n	9013.0190835258
³√n	433.09203206023
⁴√n	94.936921603377
⁵√n	38.189864392042

Divisors of 81234513

1, 9, 9026057, 81234513

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81234512	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81234513 can be divided by 4 positive divisors. The sum of these divisors (counting 81234513) is 1, the average is 0.25.

Base conversion 81234513

Base	System	Value
2	Binary	100110101111000101001010001
3	Ternary	12122212010210200
4	Quaternary	10311320221101
5	Quinary	131244001023
6	Senary	12021045413
8	Octal	465705121
10	Decimal	81234513
12	Duodecimal	23256869
16	Hexadecimal	4d78a51
20	Vigesimal	157e65d
36	Base36	1cd4y9

Cryptographic Hash Functions

md5	607b8bcd4a996bc4ef08971d04736e19
sha1	b8c89d3c9c9e78db0a4e69babd975cbecde52a49
sha256	4d4d6374847d60f4542648e52edb2f7df00bcece2a80df2d5b06e4b635c4e15f
sha512	e8fbb0e1ee43b43dd0f89d6a9892ca057c27de4962181bf2b9a028d7ae59d9a757a08620757df26d7cb5518bf89e182c44b33b828f841193075ffc29ebe3e3ca
ripemd-160	2b881a42228bb5ce0d8b28d142d029e9705a971e

81234513 as geometric shapes

Circle

Radius = n

Diameter	162469026
Circumference	510411498.51749
Area	2.0731514755834E+16

Sphere

Radius = n

Volume	2.24548600659E+24
Surface area	8.2926059023337E+16
Circumference	510411498.51749

Square

Length = n

Perimeter	324938052
Area	6599046102347169
Diagonal	114882950.01737

Cube

Length = n

Surface area	39594276614083014
Volume	5.3607029638872E+23
Space diagonal	140702303.84411

Equilateral Triangle

Length = n

Perimeter	243703539
Area	2.8574707826887E+15
Altitude	70351151.922057

Triangular Pyramid

Length = n

Surface area	2.8574707826887E+15
Volume	6.3176490294858E+22
Height	38294316.672458