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

81138863 (number)

81138863 is an odd 8-digits composite number following 81138862 and preceding 81138864. In scientific notation, it is written as 8.1138863 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 74897400 positive integers (up to 81138863) that are relatively prime to 81138863.

Interesting facts

81138863 has 4 divisors, whose sum is 87380328
The reverse of 81138863 is 36883118
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2

Name

Name	eighty-one million one hundred thirty-eight thousand eight hundred sixty-three

Notation

Scientific notation	8.1138863 × 10^7
Engineering notation	8.1138863 × 10^6

Prime Factorization of 81138863

Prime Factorization 13 × 6241451

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81138863	Product of the distinct prime numbers

The prime factorization of 81138863 is 13 × 6241451. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 8, 72, 32, 975, 39, 1757, 7994, 80251, 21754, 770160, 282746, 4405202, 2424358, 98603125, 99525025, 208748815, 542308440, 4009152743, 9979749387

Basic calculations (n = 81138863)

Multiplication

n×y

n×2	162277726
n×3	243416589
n×4	324555452
n×5	405694315

Division

n÷y

n÷2	40569431.5
n÷3	27046287.666667
n÷3	20284715.75
n÷5	16227772.6

Exponentiation

n^y

n²	6583515088932769
n³	5.3417892885935E+23
n⁴	4.3342670926205E+31
n⁵	3.5167750383355E+39

Nth Root

^y√n

²√n	9007.7113075409
³√n	432.92198314558
⁴√n	94.908963262386
⁵√n	38.180866782424

Divisors of 81138863

1, 13, 6241451, 81138863

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	-81138862	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 81138863 can be divided by 4 positive divisors. The sum of these divisors (counting 81138863) is 1, the average is 0.25.

Base conversion 81138863

Base	System	Value
2	Binary	100110101100001010010101111
3	Ternary	12122200021121002
4	Quaternary	10311201102233
5	Quinary	131232420423
6	Senary	12015030515
8	Octal	465412257
10	Decimal	81138863
12	Duodecimal	2320b43b
16	Hexadecimal	4d614af
20	Vigesimal	1572733
36	Base36	1cb35b

Cryptographic Hash Functions

md5	d2ffe14b32b8af3a852c3435feabdbc0
sha1	fa819feea1cbc7f0868bc92b472f8cad51a68b79
sha256	a2c5d2923f7cb2a6d2aa3d7fcec6b010f5a579f59b44b6205714b7eddda2ec60
sha512	bf1b4332c7408b4df8416781b771beffe724d4ae295e2c79b29af3cb2edeb2d402018abfcdcc9ecfc80e286d609e5b3baf65aa9b3aea20e6c16fdf5d123e1c05
ripemd-160	da3a9c51bee8e4fded771483aa024621bb4d6199

81138863 as geometric shapes

Circle

Radius = n

Diameter	162277726
Circumference	509810511.84286
Area	2.0682722638189E+16

Sphere

Radius = n

Volume	2.2375634648093E+24
Surface area	8.2730890552755E+16
Circumference	509810511.84286

Square

Length = n

Perimeter	324555452
Area	6583515088932769
Diagonal	114747680.49013

Cube

Length = n

Surface area	39501090533596614
Volume	5.3417892885935E+23
Space diagonal	140536633.18437

Equilateral Triangle

Length = n

Perimeter	243416589
Area	2.850745656607E+15
Altitude	70268316.592185

Triangular Pyramid

Length = n

Surface area	2.850745656607E+15
Volume	6.2953590493902E+22
Height	38249226.830044