81454199 is an odd 8-digits composite number following 81454198
and preceding 81454200 . In scientific notation, it is written as 8.1454199 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 81153360 positive integers (up to 81454199) that are relatively prime to 81454199.
81454199 has 4 divisors, whose sum is 81755040
The reverse of 81454199 is 99145418
Previous prime number is 271
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-one million four hundred fifty-four thousand one hundred ninety-nine
Scientific notation
8.1454199 × 10^7
Engineering notation
8.1454199 × 10^6
Prime Factorization
271 × 300569
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81454199
Product of the distinct prime numbers
The prime factorization of 81454199 is 271 × 300569.
Since it has a total of 2 prime factors.
8 , 9 , 83 , 90 , 509 , 238 , 6566 , 2949 , 25699 , 21682 , 917645 , 453141 , 64196 , 4787831 , 2773489 , 58388173 , 450201595 , 721820590 , 4710542466 , 7099076418
n×2
162908398
n×3
244362597
n×4
325816796
n×5
407270995
n÷2
40727099.5
n÷3
27151399.666667
n÷3
20363549.75
n÷5
16290839.8
n2
6634786534731601
n3
5.4043122272255E+23
n4
4.4020392361456E+31
n5
3.5856457994681E+39
2 √n
9025.1980033681
3 √n
433.48209047956
4 √n
95.001042117274
5 √n
38.210497783937
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
-81454198
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 81454199 can be divided by 4 positive divisors.
The sum of these divisors (counting 81454199) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110101110010001110111
3
Ternary
12200021022011012
4
Quaternary
10312232101313
5
Quinary
131323013244
6
Senary
12025502435
8
Octal
466562167
10
Decimal
81454199
12
Duodecimal
23341a1b
16
Hexadecimal
4dae477
20
Vigesimal
1591f9j
36
Base36
1chugn
md5
6e2f470d7a2e53dc8b7ee888cdc6e084
sha1
1b0a3506fd7be70696f3377b4d1e43a5488bc0fb
sha256
82b346523c77b3c8a62f58fb6fce31b04ad438402199bd667db9269de1fa2c8c
sha512
937b15664ab0447b7bdd8c27f4824fcc7c38c2280866a1c40e85954d1a759d5252616499da19ad640576487ed9040294c9bc8628694637a1baccd41d9bb4f0aa
ripemd-160
effbd47c2185df819f5bd0494ede3db4ab0a6809
Diameter
162908398
Circumference
511791826.36488
Area
2.0843796635649E+16
Volume
2.2637530121009E+24
Surface area
8.3375186542597E+16
Circumference
511791826.36488
Perimeter
325816796
Area
6634786534731601
Diagonal
115193632.93804
Surface area
39808719208389606
Volume
5.4043122272255E+23
Space diagonal
141082811.15783
Perimeter
244362597
Area
2.8729468438822E+15
Altitude
70541405.578913
Surface area
2.8729468438822E+15
Volume
6.3690430392009E+22
Height
38397877.646012