81749095 is an odd 8-digits composite number following 81749094
and preceding 81749096 . In scientific notation, it is written as 8.1749095 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 63631584 positive integers (up to 81749095) that are relatively prime to 81749095.
81749095 has 8 divisors, whose sum is 100750464
The reverse of 81749095 is 59094718
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
eighty-one million seven hundred forty-nine thousand ninety-five
Scientific notation
8.1749095 × 10^7
Engineering notation
8.1749095 × 10^6
Prime Factorization
5 × 37 × 441887
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81749095
Product of the distinct prime numbers
The prime factorization of 81749095 is 5 × 37 × 441887.
Since it has a total of 3 prime factors.
2 , 5 , 66 , 11 , 919 , 141 , 236 , 237 , 29128 , 10683 , 148506 , 146981 , 1958620 , 3372861 , 48261823 , 76670653 , 188098112 , 900600417 , 2452273581 , 535959324
n×2
163498190
n×3
245247285
n×4
326996380
n×5
408745475
n÷2
40874547.5
n÷3
27249698.333333
n÷3
20437273.75
n÷5
16349819
n2
6682914533319025
n3
5.4632221506118E+23
n4
4.4661346659647E+31
n5
3.6510246709074E+39
2 √n
9041.5206132597
3 √n
434.00458524041
4 √n
95.086910840871
5 √n
38.238125187921
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
-81749094
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 81749095 can be divided by 8 positive divisors.
The sum of these divisors (counting 81749095) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111110110010001100111
3
Ternary
12200211021200021
4
Quaternary
10313312101213
5
Quinary
131411432340
6
Senary
12040100011
8
Octal
467662147
10
Decimal
81749095
12
Duodecimal
23464607
16
Hexadecimal
4df6467
20
Vigesimal
15aicef
36
Base36
1co607
md5
5b585f615d2ac1a29b13853a392b714b
sha1
a7686fe7057846ce6c7fdffb76b7c25944e3ee40
sha256
72414aaa012521e0653089e409a930de995ebc1dc906a186ce37a191fe4e9b12
sha512
b3d70f50ea8cecdaf59cf3fc9ec6c5d67349b20397077f5810842d4f570abc3f733117fb4b347c575a931558453e0ff55ecda70664aca2c6944e525db05b98ac
ripemd-160
838347a4b58ca84acc6683aefe9df99afbe81326
Diameter
163498190
Circumference
513644712.57923
Area
2.0994995202444E+16
Volume
2.2884291431055E+24
Surface area
8.3979980809774E+16
Circumference
513644712.57923
Perimeter
326996380
Area
6682914533319025
Diagonal
115610678.86073
Surface area
40097487199914150
Volume
5.4632221506118E+23
Space diagonal
141593586.01277
Perimeter
245247285
Area
2.8937868785873E+15
Altitude
70796793.006387
Surface area
2.8937868785873E+15
Volume
6.4384690497102E+22
Height
38536892.953576