81749092 is an even 8-digits composite number following 81749091
and preceding 81749093 . In scientific notation, it is written as 8.1749092 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 6 positive divisors.
There are 40874544 positive integers (up to 81749092) that are relatively prime to 81749092.
81749092 has 6 divisors, whose sum is 143060918
The reverse of 81749092 is 29094718
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million seven hundred forty-nine thousand ninety-two
Scientific notation
8.1749092 × 10^7
Engineering notation
8.1749092 × 10^6
Prime Factorization
2 × 2 × 20437273
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
40874546
Product of the distinct prime numbers
The prime factorization of 81749092 is 2 × 2 × 20437273.
Since it has a total of 3 prime factors.
10 , 8 , 57 , 95 , 346 , 901 , 6579 , 4714 , 60663 , 7272 , 907238 , 394425 , 4561140 , 148624 , 99287964 , 93115517 , 864631580 , 116389426 , 5533831396 , 6668827558
n×2
163498184
n×3
245247276
n×4
326996368
n×5
408745460
n÷2
40874546
n÷3
27249697.333333
n÷3
20437273
n÷5
16349818.4
n2
6682914042824464
n3
5.4632215491495E+23
n4
4.466134010378E+31
n5
3.6510240009872E+39
2 √n
9041.5204473584
3 √n
434.00457993142
4 √n
95.086909968504
5 √n
38.238124907271
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81749091
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81749092 can be divided by 6 positive divisors.
The sum of these divisors (counting 81749092) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100110111110110010001100100
3
Ternary
12200211021200011
4
Quaternary
10313312101210
5
Quinary
131411432332
6
Senary
12040100004
8
Octal
467662144
10
Decimal
81749092
12
Duodecimal
23464604
16
Hexadecimal
4df6464
20
Vigesimal
15aicec
36
Base36
1co604
md5
05f17c92b43077a33c2c2c21f18f2b27
sha1
c2076b6f6a64536eaa762f50da7f8931f8b76e01
sha256
905975203d0b4ac397fabde440fc3ba7c67dd8659fc6707916f3dde74c7d9a12
sha512
7dd41dbb2e623051a6225b19d65722c67e688e0da398b402d86ce3c52d757aa1a476c5bba515e66d029c2ffe77aec2edcba3790804b3f0d3139aad1988c8906f
ripemd-160
93c3556ada9a47ef75b6bd2c1d5a3c9ccd187cd9
Diameter
163498184
Circumference
513644693.72967
Area
2.0994993661509E+16
Volume
2.2884288911655E+24
Surface area
8.3979974646038E+16
Circumference
513644693.72967
Perimeter
326996368
Area
6682914042824464
Diagonal
115610674.61809
Surface area
40097484256946784
Volume
5.4632215491495E+23
Space diagonal
141593580.81662
Perimeter
245247276
Area
2.8937866661969E+15
Altitude
70796790.408311
Surface area
2.8937866661969E+15
Volume
6.4384683408801E+22
Height
38536891.539362