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

81081489 (number)

81081489 is an odd 8-digits composite number following 81081488 and preceding 81081490. In scientific notation, it is written as 8.1081489 × 10^7. The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors. There are 54054324 positive integers (up to 81081489) that are relatively prime to 81081489.

Interesting facts

81081489 has 4 divisors, whose sum is 108108656
The reverse of 81081489 is 98418018
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

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

Notation

Scientific notation	8.1081489 × 10^7
Engineering notation	8.1081489 × 10^6

Prime Factorization of 81081489

Prime Factorization 3 × 27027163

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81081489	Product of the distinct prime numbers

The prime factorization of 81081489 is 3 × 27027163. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 1, 8, 42, 270, 631, 1121, 674, 57321, 12652, 351875, 803322, 1982852, 834105, 56318148, 64362059, 891735206, 338450817, 173268283, 2658751899

Basic calculations (n = 81081489)

Multiplication

n×y

n×2	162162978
n×3	243244467
n×4	324325956
n×5	405407445

Division

n÷y

n÷2	40540744.5
n÷3	27027163
n÷3	20270372.25
n÷5	16216297.8

Exponentiation

n^y

n²	6574207858457121
n³	5.330465621592E+23
n⁴	4.3220208966199E+31
n⁵	3.5043588978706E+39

Nth Root

^y√n

²√n	9004.5260286147
³√n	432.81991811064
⁴√n	94.892181072071
⁵√n	38.175465649535

Divisors of 81081489

1, 3, 27027163, 81081489

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	-81081488	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 81081489 can be divided by 4 positive divisors. The sum of these divisors (counting 81081489) is 1, the average is 0.25.

Base conversion 81081489

Base	System	Value
2	Binary	100110101010011010010010001
3	Ternary	12122120100220010
4	Quaternary	10311103102101
5	Quinary	131224101424
6	Senary	12013505133
8	Octal	465232221
10	Decimal	81081489
12	Duodecimal	231a21a9
16	Hexadecimal	4d53491
20	Vigesimal	156f3e9
36	Base36	1c9uvl

Cryptographic Hash Functions

md5	000eed1b27bac73200f5674d896feb3e
sha1	76b1a7c9039b680c7a88d1a4a5dd6e37528355a7
sha256	bef52070c67645545a453789538aa62cb382d751b5d47384ebdef64db142ef94
sha512	d58dbf7bd729b0bab82c2a0a7f62cff886520db0758b90b4a37bf5de19b5960c5f4e6a772700b016d4630626b2855ae13648680011ee73120c51a7b1d8c364d5
ripemd-160	377bbad36fd618a88f0ca5dfd2d3a3a15c08e66a

81081489 as geometric shapes

Circle

Radius = n

Diameter	162162978
Circumference	509450020.36904
Area	2.0653483111301E+16

Sphere

Radius = n

Volume	2.2328202182675E+24
Surface area	8.2613932445205E+16
Circumference	509450020.36904

Square

Length = n

Perimeter	324325956
Area	6574207858457121
Diagonal	114666541.4012

Cube

Length = n

Surface area	39445247150742726
Volume	5.330465621592E+23
Space diagonal	140437258.50134

Equilateral Triangle

Length = n

Perimeter	243244467
Area	2.8467155075916E+15
Altitude	70218629.250669

Triangular Pyramid

Length = n

Surface area	2.8467155075916E+15
Volume	6.2820139798492E+22
Height	38222180.467068