81742743 is an odd 8-digits composite number following 81742742
and preceding 81742744 . In scientific notation, it is written as 8.1742743 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 54495144 positive integers (up to 81742743) that are relatively prime to 81742743.
81742743 has 4 divisors, whose sum is 84770280
The reverse of 81742743 is 34724718
Previous prime number is 27
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
eighty-one million seven hundred forty-two thousand seven hundred forty-three
Scientific notation
8.1742743 × 10^7
Engineering notation
8.1742743 × 10^6
Prime Factorization
27 × 3027509
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81742743
Product of the distinct prime numbers
The prime factorization of 81742743 is 27 × 3027509.
Since it has a total of 2 prime factors.
5 , 5 , 23 , 6 , 142 , 157 , 2486 , 8332 , 61235 , 73756 , 535535 , 245505 , 350638 , 9250280 , 3239910 , 51972902 , 251739067 , 809686324 , 8448192113 , 3179550701
n×2
163485486
n×3
245228229
n×4
326970972
n×5
408713715
n÷2
40871371.5
n÷3
27247581
n÷3
20435685.75
n÷5
16348548.6
n2
6681876033164049
n3
5.4619487533679E+23
n4
4.4647467322572E+31
n5
3.6496064469499E+39
2 √n
9041.169338089
3 √n
433.99334406181
4 √n
95.085063696087
5 √n
38.237530940069
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
-81742742
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 81742743 can be divided by 4 positive divisors.
The sum of these divisors (counting 81742743) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111110100101110010111
3
Ternary
12200210221222000
4
Quaternary
10313310232113
5
Quinary
131411231433
6
Senary
12040010343
8
Octal
467645627
10
Decimal
81742743
12
Duodecimal
234609b3
16
Hexadecimal
4df4b97
20
Vigesimal
15ahgh3
36
Base36
1co13r
md5
c2b8293d59ccd2ea3cb9fb6e70ef680d
sha1
84ddcc65580fa79f25f19baca925d2becca71c7e
sha256
19a285b832a8521db08ebc045c0a9b80c1ab9bce7ba6d49094a6cd38d61431f8
sha512
cd5999ee68a97157bea44ed09a2b91c06c4e92027e690bab124e07ab74acc7e0ec3ceb709fbbf9fc9254db3521fe9fccfe2232fe4a8095f9282341c088708a65
ripemd-160
dcc4aae1cd5d2efa36adeb9b8411eb7238387faf
Diameter
163485486
Circumference
513604801.78616
Area
2.0991732657986E+16
Volume
2.2878957437153E+24
Surface area
8.3966930631944E+16
Circumference
513604801.78616
Perimeter
326970972
Area
6681876033164049
Diagonal
115601695.77618
Surface area
40091256198984294
Volume
5.4619487533679E+23
Space diagonal
141582584.02605
Perimeter
245228229
Area
2.8933371948292E+15
Altitude
70791292.013023
Surface area
2.8933371948292E+15
Volume
6.4369683366664E+22
Height
38533898.592059