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

81489705 (number)

81489705 is an odd 8-digits composite number following 81489704 and preceding 81489706. In scientific notation, it is written as 8.1489705 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 39510080 positive integers (up to 81489705) that are relatively prime to 81489705.

Interesting facts

81489705 has 8 divisors, whose sum is 94824576
The reverse of 81489705 is 50798418
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6

Name

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

Notation

Scientific notation	8.1489705 × 10^7
Engineering notation	8.1489705 × 10^6

Prime Factorization of 81489705

Prime Factorization 15 × 11 × 493877

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81489705	Product of the distinct prime numbers

The prime factorization of 81489705 is 15 × 11 × 493877. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 5, 89, 97, 798, 462, 3327, 6013, 76346, 73688, 997737, 83487, 2196055, 3438699, 47239727, 49149760, 201251462, 486523581, 3557180859, 3409794304

Basic calculations (n = 81489705)

Multiplication

n×y

n×2	162979410
n×3	244469115
n×4	325958820
n×5	407448525

Division

n÷y

n÷2	40744852.5
n÷3	27163235
n÷3	20372426.25
n÷5	16297941

Exponentiation

n^y

n²	6640572020987025
n³	5.4113825502149E+23
n⁴	4.4097196765916E+31
n⁵	3.5934675557814E+39

Nth Root

^y√n

²√n	9027.1648373119
³√n	433.54506648114
⁴√n	95.011393197405
⁵√n	38.213828405213

Divisors of 81489705

1, 11, 15, 165, 493877, 5432647, 7408155, 81489705

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	-81489704	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 81489705 can be divided by 8 positive divisors. The sum of these divisors (counting 81489705) is 1, the average is 0.125.

Base conversion 81489705

Base	System	Value
2	Binary	100110110110110111100101001
3	Ternary	12200100002212020
4	Quaternary	10312312330221
5	Quinary	131330132310
6	Senary	12030335053
8	Octal	466667451
10	Decimal	81489705
12	Duodecimal	2335a489
16	Hexadecimal	4db6f29
20	Vigesimal	1596455
36	Base36	1cilux

Cryptographic Hash Functions

md5	710a5b26a046406e050f4cf760ff105c
sha1	8d9d4a3f521cb2fee0abe01b2de224533ea8e3ff
sha256	d4a28bf3a2a33498d838edd3ddc59b8b2d09d5754efb58aad5e62250ad1e4823
sha512	f1972e5f8ca3fe7a62116031794f4f5cf56a16185a383db3e500e3d76228dc1a7854224736ca2bf5e2ab2362ab2bf46fe70f8cd422139f11d1e963a21660e7f1
ripemd-160	d36c2c91c26da1c23334e37601db3edf91e8408b

81489705 as geometric shapes

Circle

Radius = n

Diameter	162979410
Circumference	512014917.1424
Area	2.0861972276767E+16

Sphere

Radius = n

Volume	2.2667146220692E+24
Surface area	8.3447889107067E+16
Circumference	512014917.1424

Square

Length = n

Perimeter	325958820
Area	6640572020987025
Diagonal	115243846.00478

Cube

Length = n

Surface area	39843432125922150
Volume	5.4113825502149E+23
Space diagonal	141144309.3538

Equilateral Triangle

Length = n

Perimeter	244469115
Area	2.8754520329175E+15
Altitude	70572154.6769

Triangular Pyramid

Length = n

Surface area	2.8754520329175E+15
Volume	6.3773754947525E+22
Height	38414615.334928