81128522 is an even 8-digits composite number following 81128521
and preceding 81128523 . In scientific notation, it is written as 8.1128522 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 38178112 positive integers (up to 81128522) that are relatively prime to 81128522.
81128522 has 8 divisors, whose sum is 128851236
The reverse of 81128522 is 22582118
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million one hundred twenty-eight thousand five hundred twenty-two
Scientific notation
8.1128522 × 10^7
Engineering notation
8.1128522 × 10^6
Prime Factorization
2 × 17 × 2386133
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81128522
Product of the distinct prime numbers
The prime factorization of 81128522 is 2 × 17 × 2386133.
Since it has a total of 3 prime factors.
9 , 4 , 93 , 90 , 367 , 325 , 6616 , 5330 , 76283 , 16143 , 519656 , 220789 , 6496828 , 8748705 , 85872497 , 92909786 , 638325209 , 9786810 , 5282046064 , 3028707619
n×2
162257044
n×3
243385566
n×4
324514088
n×5
405642610
n÷2
40564261
n÷3
27042840.666667
n÷3
20282130.5
n÷5
16225704.4
n2
6581837081904484
n3
5.339747144997E+23
n4
4.3320579372733E+31
n5
3.5145345766935E+39
2 √n
9007.1372810677
3 √n
432.90359065865
4 √n
94.905939124313
5 √n
38.179893516449
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
-81128521
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 81128522 can be divided by 8 positive divisors.
The sum of these divisors (counting 81128522) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011110110001001010
3
Ternary
12122122202102002
4
Quaternary
10311132301022
5
Quinary
131232103042
6
Senary
12014511002
8
Octal
465366112
10
Decimal
81128522
12
Duodecimal
23205462
16
Hexadecimal
4d5ec4a
20
Vigesimal
1571162
36
Base36
1cav62
md5
7699362ad2103c835e2fad1e8b87f4af
sha1
dae165f5520819cd7182d1225fb7ec69a8ae60c9
sha256
e29f71528fec13f1766c07b3c93010a081318f1019a8280c704beebb78005779
sha512
b3e4ef653e5b5939c3ed5ee0d500b6f8c66900ad5dcbf60a0061ed523f638ce8d41e4cc7b2acd32495dff2387f95890a7aa1c3e636b1454805398c9f5ca2083c
ripemd-160
051ada6ffa490fab57cd7b46b9bb9bc0f2e8937d
Diameter
162257044
Circumference
509745537.4236
Area
2.0677451023636E+16
Volume
2.2367080537E+24
Surface area
8.2709804094544E+16
Circumference
509745537.4236
Perimeter
324514088
Area
6581837081904484
Diagonal
114733056.10768
Surface area
39491022491426904
Volume
5.339747144997E+23
Space diagonal
140518722.04697
Perimeter
243385566
Area
2.8500190582499E+15
Altitude
70259361.023485
Surface area
2.8500190582499E+15
Volume
6.2929523600815E+22
Height
38244352.035895