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

81489071 (number)

81489071 is an odd 8-digits composite number following 81489070 and preceding 81489072. In scientific notation, it is written as 8.1489071 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 81464712 positive integers (up to 81489071) that are relatively prime to 81489071.

Interesting facts

81489071 has 4 divisors, whose sum is 81513432
The reverse of 81489071 is 17098418
Previous prime number is 4003

Basic properties

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

Name

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

Notation

Scientific notation	8.1489071 × 10^7
Engineering notation	8.1489071 × 10^6

Prime Factorization of 81489071

Prime Factorization 4003 × 20357

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81489071	Product of the distinct prime numbers

The prime factorization of 81489071 is 4003 × 20357. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 8, 78, 16, 580, 900, 6030, 9079, 63101, 28694, 665265, 759051, 9385531, 6924675, 15790584, 6184139, 892131765, 937172634, 1725149546, 7689874848

Basic calculations (n = 81489071)

Multiplication

n×y

n×2	162978142
n×3	244467213
n×4	325956284
n×5	407445355

Division

n÷y

n÷2	40744535.5
n÷3	27163023.666667
n÷3	20372267.75
n÷5	16297814.2

Exponentiation

n^y

n²	6640468692443041
n³	5.4112562475177E+23
n⁴	4.4095824455316E+31
n⁵	3.5933277698428E+39

Nth Root

^y√n

²√n	9027.1297210132
³√n	433.54394213345
⁴√n	95.011208396763
⁵√n	38.213768943364

Divisors of 81489071

1, 4003, 20357, 81489071

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	-81489070	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 81489071 can be divided by 4 positive divisors. The sum of these divisors (counting 81489071) is 1, the average is 0.25.

Base conversion 81489071

Base	System	Value
2	Binary	100110110110110110010101111
3	Ternary	12200100001222202
4	Quaternary	10312312302233
5	Quinary	131330122241
6	Senary	12030332115
8	Octal	466666257
10	Decimal	81489071
12	Duodecimal	2335a03b
16	Hexadecimal	4db6caf
20	Vigesimal	15962db
36	Base36	1cildb

Cryptographic Hash Functions

md5	17cdcdb36ff3da3362f9bebf04689f69
sha1	7edb03d658a6c55db0cb3e98de1a70c09ccc4ce4
sha256	2bec686cde177570b49f8fb6620479678741d38779002b8c980ed14ca3051ce3
sha512	4ccd4fdc9f4b4c7c98debb17faf36f30a66f806aee22538f6b791a5c7e6dc884d82b2701c7a830d8c0ecfa0ca0791d718527050b006f4ce61058162c3313f150
ripemd-160	2ae5d8786d4a2e40be1c1ccbfdf481acedc3c007

81489071 as geometric shapes

Circle

Radius = n

Diameter	162978142
Circumference	512010933.60291
Area	2.0861647660572E+16

Sphere

Radius = n

Volume	2.2666617165191E+24
Surface area	8.3446590642288E+16
Circumference	512010933.60291

Square

Length = n

Perimeter	325956284
Area	6640468692443041
Diagonal	115242949.39338

Cube

Length = n

Surface area	39842812154658246
Volume	5.4112562475177E+23
Space diagonal	141143211.23359

Equilateral Triangle

Length = n

Perimeter	244467213
Area	2.8754072903455E+15
Altitude	70571605.616794

Triangular Pyramid

Length = n

Surface area	2.8754072903455E+15
Volume	6.3772266455964E+22
Height	38414316.464461