81741749 is an odd 8-digits composite number following 81741748
and preceding 81741750 . In scientific notation, it is written as 8.1741749 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 78685936 positive integers (up to 81741749) that are relatively prime to 81741749.
81741749 has 8 divisors, whose sum is 84814560
The reverse of 81741749 is 94714718
Previous prime number is 347
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-one million seven hundred forty-one thousand seven hundred forty-nine
Scientific notation
8.1741749 × 10^7
Engineering notation
8.1741749 × 10^6
Prime Factorization
29 × 347 × 8123
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81741749
Product of the distinct prime numbers
The prime factorization of 81741749 is 29 × 347 × 8123.
Since it has a total of 3 prime factors.
3 , 8 , 69 , 5 , 656 , 193 , 9960 , 1200 , 65203 , 82898 , 636891 , 646836 , 5887435 , 8507238 , 79847680 , 33773885 , 656282752 , 846698678 , 9595260857 , 2470351450
n×2
163483498
n×3
245225247
n×4
326966996
n×5
408708745
n÷2
40870874.5
n÷3
27247249.666667
n÷3
20435437.25
n÷5
16348349.8
n2
6681713529579001
n3
5.4617495022475E+23
n4
4.4645295691359E+31
n5
3.6493845544339E+39
2 √n
9041.1143671563
3 √n
433.9915849204
4 √n
95.084774633778
5 √n
38.23743794517
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
-81741748
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 81741749 can be divided by 8 positive divisors.
The sum of these divisors (counting 81741749) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111110100011110110101
3
Ternary
12200210220121012
4
Quaternary
10313310132311
5
Quinary
131411213444
6
Senary
12040002005
8
Octal
467643665
10
Decimal
81741749
12
Duodecimal
23460305
16
Hexadecimal
4df47b5
20
Vigesimal
15ahe79
36
Base36
1co0c5
md5
514c0155c9ce625f14840759e8d31359
sha1
9f5b1f0659d6a3fddb739dc408027fe58318e53e
sha256
1fe3a42b904aea76fa0af66f90afbdd42f020d07c4525fb24ba9fdc045b97359
sha512
b0dc562adfa9f252220831372c6dfdbb9e9bd3fc2f3c7d558231dd19696336fb413e4724c74bf561960d697fc52c5a7b28f6f37931776d506068f731f49726da
ripemd-160
8dbd53012a7526208bae557571644816b6a9e92c
Diameter
163483498
Circumference
513598556.29996
Area
2.0991222137917E+16
Volume
2.2878122816011E+24
Surface area
8.3964888551668E+16
Circumference
513598556.29996
Perimeter
326966996
Area
6681713529579001
Diagonal
115600290.0479
Surface area
40090281177474006
Volume
5.4617495022475E+23
Space diagonal
141580862.36754
Perimeter
245225247
Area
2.8932668287128E+15
Altitude
70790431.183771
Surface area
2.8932668287128E+15
Volume
6.4367335169691E+22
Height
38533430.015966