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

81355087 (number)

81355087 is an odd 8-digits composite number following 81355086 and preceding 81355088. In scientific notation, it is written as 8.1355087 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 73959160 positive integers (up to 81355087) that are relatively prime to 81355087.

Interesting facts

81355087 has 4 divisors, whose sum is 88751016
The reverse of 81355087 is 78055318
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

Name	eighty-one million three hundred fifty-five thousand eighty-seven

Notation

Scientific notation	8.1355087 × 10^7
Engineering notation	8.1355087 × 10^6

Prime Factorization of 81355087

Prime Factorization 11 × 7395917

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81355087	Product of the distinct prime numbers

The prime factorization of 81355087 is 11 × 7395917. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 6, 29, 9, 544, 909, 6022, 9458, 25551, 23719, 187308, 415758, 153679, 1578755, 53232185, 93493451, 453997634, 33409289, 7965716101, 7673892586

Basic calculations (n = 81355087)

Multiplication

n×y

n×2	162710174
n×3	244065261
n×4	325420348
n×5	406775435

Division

n÷y

n÷2	40677543.5
n÷3	27118362.333333
n÷3	20338771.75
n÷5	16271017.4

Exponentiation

n^y

n²	6618650180777569
n³	5.3846086127972E+23
n⁴	4.3806530215507E+31
n⁵	3.5638840768507E+39

Nth Root

^y√n

²√n	9019.7054829967
³√n	433.30620139132
⁴√n	94.972130032956
⁵√n	38.201194485915

Divisors of 81355087

1, 11, 7395917, 81355087

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	-81355086	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 81355087 can be divided by 4 positive divisors. The sum of these divisors (counting 81355087) is 1, the average is 0.25.

Base conversion 81355087

Base	System	Value
2	Binary	100110110010110000101001111
3	Ternary	12200002021012101
4	Quaternary	10312112011033
5	Quinary	131311330322
6	Senary	12023415531
8	Octal	466260517
10	Decimal	81355087
12	Duodecimal	232b45a7
16	Hexadecimal	4d9614f
20	Vigesimal	15897e7
36	Base36	1cfpzj

Cryptographic Hash Functions

md5	bcd90974ac3b624ec0b0d5485160b83d
sha1	2894ddaef6867fde3f647338bbfea02154f97983
sha256	ad10fd0a2f636b9da95b248a1c51694d90e5788bd5bda60ef3959e45eef604f3
sha512	d70f5b2b42837a3c20149e424200c2136c1059d615ee48d831501b57952bc115979029fddba390adeb68f744abfcb3563b02f05a4db5124e440e4e3c0b639efb
ripemd-160	b29dc1494e3845629776a885eab468a61509d4cc

81355087 as geometric shapes

Circle

Radius = n

Diameter	162710174
Circumference	511169087.30272
Area	2.0793102784612E+16

Sphere

Radius = n

Volume	2.2554995813894E+24
Surface area	8.3172411138446E+16
Circumference	511169087.30272

Square

Length = n

Perimeter	325420348
Area	6618650180777569
Diagonal	115053467.40344

Cube

Length = n

Surface area	39711901084665414
Volume	5.3846086127972E+23
Space diagonal	140911144.13819

Equilateral Triangle

Length = n

Perimeter	244065261
Area	2.8659595976579E+15
Altitude	70455572.069093

Triangular Pyramid

Length = n

Surface area	2.8659595976579E+15
Volume	6.3458221069074E+22
Height	38351155.801148