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

81489087 (number)

81489087 is an odd 8-digits composite number following 81489086 and preceding 81489088. In scientific notation, it is written as 8.1489087 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 54280608 positive integers (up to 81489087) that are relatively prime to 81489087.

Interesting facts

81489087 has 8 divisors, whose sum is 90619200
The reverse of 81489087 is 78098418
Previous prime number is 1487

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9

Name

Name	eighty-one million four hundred eighty-nine thousand eighty-seven

Notation

Scientific notation	8.1489087 × 10^7
Engineering notation	8.1489087 × 10^6

Prime Factorization of 81489087

Prime Factorization 9 × 1487 × 6089

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81489087	Product of the distinct prime numbers

The prime factorization of 81489087 is 9 × 1487 × 6089. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 4, 9, 79, 64, 24, 7049, 6161, 50538, 84307, 73682, 224774, 7263969, 3245906, 15328484, 80881130, 239480714, 555711373, 8039537997, 3074336245

Basic calculations (n = 81489087)

Multiplication

n×y

n×2	162978174
n×3	244467261
n×4	325956348
n×5	407445435

Division

n÷y

n÷2	40744543.5
n÷3	27163029
n÷3	20372271.75
n÷5	16297817.4

Exponentiation

n^y

n²	6640471300093569
n³	5.4112594349433E+23
n⁴	4.4095859087366E+31
n⁵	3.5933312975101E+39

Nth Root

^y√n

²√n	9027.1306072306
³√n	433.54397050823
⁴√n	95.011213060515
⁵√n	38.213770443983

Divisors of 81489087

1, 9, 1487, 6089, 13383, 54801, 9054343, 81489087

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	-81489086	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 81489087 can be divided by 8 positive divisors. The sum of these divisors (counting 81489087) is 1, the average is 0.125.

Base conversion 81489087

Base	System	Value
2	Binary	100110110110110110010111111
3	Ternary	12200100002000100
4	Quaternary	10312312302333
5	Quinary	131330122322
6	Senary	12030332143
8	Octal	466666277
10	Decimal	81489087
12	Duodecimal	2335a053
16	Hexadecimal	4db6cbf
20	Vigesimal	15962e7
36	Base36	1cildr

Cryptographic Hash Functions

md5	c13d0eaf08803e58bdc4ea7e5888dc04
sha1	a4dfacc1fa37c028fb5dbe44fcc665373833a229
sha256	fe3f49718836288f3a086c72906fb2679c5c5025949f6befa68e5b26bec47030
sha512	ad5e78b2f2eae67b21e137811a5a8779ea41cc240fc7b4dce1ded572574c8d34d3186e7a3224abb901fb9ff0dfca5efb487a55982f559450331394c817f7e780
ripemd-160	3c3d69366033482700efbf6bfcb6781d9be6df29

81489087 as geometric shapes

Circle

Radius = n

Diameter	162978174
Circumference	512011034.13388
Area	2.0861655852748E+16

Sphere

Radius = n

Volume	2.2666630516648E+24
Surface area	8.3446623410991E+16
Circumference	512011034.13388

Square

Length = n

Perimeter	325956348
Area	6640471300093569
Diagonal	115242972.0208

Cube

Length = n

Surface area	39842827800561414
Volume	5.4112594349433E+23
Space diagonal	141143238.9464

Equilateral Triangle

Length = n

Perimeter	244467261
Area	2.8754084194913E+15
Altitude	70571619.4732

Triangular Pyramid

Length = n

Surface area	2.8754084194913E+15
Volume	6.3772304020135E+22
Height	38414324.006934