81130143 is an odd 8-digits composite number following 81130142
and preceding 81130144 . In scientific notation, it is written as 8.1130143 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 54086760 positive integers (up to 81130143) that are relatively prime to 81130143.
81130143 has 4 divisors, whose sum is 108173528
The reverse of 81130143 is 34103118
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
eighty-one million one hundred thirty thousand one hundred forty-three
Scientific notation
8.1130143 × 10^7
Engineering notation
8.1130143 × 10^6
Prime Factorization
3 × 27043381
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81130143
Product of the distinct prime numbers
The prime factorization of 81130143 is 3 × 27043381.
Since it has a total of 2 prime factors.
2 , 3 , 59 , 67 , 234 , 657 , 9881 , 8594 , 68020 , 86661 , 359395 , 328805 , 2872522 , 3991852 , 1015957 , 48966261 , 12349454 , 620515795 , 6025761510 , 3925316996
n×2
162260286
n×3
243390429
n×4
324520572
n×5
405650715
n÷2
40565071.5
n÷3
27043381
n÷3
20282535.75
n÷5
16226028.6
n2
6582100103200449
n3
5.3400672261297E+23
n4
4.3324041768551E+31
n5
3.5148857040205E+39
2 √n
9007.2272648135
3 √n
432.90647387009
4 √n
94.906413191172
5 √n
38.180046086991
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
-81130142
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 81130143 can be divided by 4 positive divisors.
The sum of these divisors (counting 81130143) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101011111001010011111
3
Ternary
12122122211122010
4
Quaternary
10311133022133
5
Quinary
131232131033
6
Senary
12014522303
8
Octal
465371237
10
Decimal
81130143
12
Duodecimal
23206393
16
Hexadecimal
4d5f29f
20
Vigesimal
1571573
36
Base36
1cawf3
md5
60cd2baf448611ed863ba200b2de3257
sha1
4110129f2156f5cf377382c9836f8965f3b08347
sha256
204a170750a8a14b36dcc90b72aa0c38ddb2582e608ce35f8f70373c7ef70ed4
sha512
c9285c7cec881c94ea201b7c7edd72d9eb4e1df52e4e7b10e0ff706b5d7d241bcf885b88b4f4a1815c742099a2c86bdb85f62dd75b0fe587b562d08c74e1069b
ripemd-160
d75cfd54445d5fb674a3498e44c79316f58a1619
Diameter
162260286
Circumference
509755722.46698
Area
2.0678277329407E+16
Volume
2.2368421289713E+24
Surface area
8.2713109317629E+16
Circumference
509755722.46698
Perimeter
324520572
Area
6582100103200449
Diagonal
114735348.54787
Surface area
39492600619202694
Volume
5.3400672261297E+23
Space diagonal
140521529.70133
Perimeter
243390429
Area
2.8501329498119E+15
Altitude
70260764.850664
Surface area
2.8501329498119E+15
Volume
6.2933295793139E+22
Height
38245116.182623