81612434 is an even 8-digits composite number following 81612433
and preceding 81612435 . In scientific notation, it is written as 8.1612434 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 40721940 positive integers (up to 81612434) that are relatively prime to 81612434.
81612434 has 8 divisors, whose sum is 122671488
The reverse of 81612434 is 43421618
Previous prime number is 487
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million six hundred twelve thousand four hundred thirty-four
Scientific notation
8.1612434 × 10^7
Engineering notation
8.1612434 × 10^6
Prime Factorization
2 × 487 × 83791
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81612434
Product of the distinct prime numbers
The prime factorization of 81612434 is 2 × 487 × 83791.
Since it has a total of 3 prime factors.
3 , 3 , 14 , 33 , 79 , 306 , 4136 , 771 , 40585 , 79527 , 173113 , 643043 , 3417826 , 3222518 , 74634919 , 82423404 , 795155061 , 774389736 , 2333501719 , 455139367
n×2
163224868
n×3
244837302
n×4
326449736
n×5
408062170
n÷2
40806217
n÷3
27204144.666667
n÷3
20403108.5
n÷5
16322486.8
n2
6660589383404356
n3
5.4358691145419E+23
n4
4.4363450934319E+31
n5
3.6206092113893E+39
2 √n
9033.9600397611
3 √n
433.76260669231
4 √n
95.047146405145
5 √n
38.225331998574
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
-81612433
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 81612434 can be divided by 8 positive divisors.
The sum of these divisors (counting 81612434) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111010100111010010010
3
Ternary
12200120100012202
4
Quaternary
10313110322102
5
Quinary
131343044214
6
Senary
12033123202
8
Octal
467247222
10
Decimal
81612434
12
Duodecimal
233b9502
16
Hexadecimal
4dd4e92
20
Vigesimal
15a1b1e
36
Base36
1cl8k2
md5
85439ba54a0c2569f6ad62369291bc4c
sha1
e106e6eae23e98a2baf174cb9d427d38c8101940
sha256
f4dfe2348b6e6214ef96ef191e7f8c6f97e57f7173014671779ad8d65decc750
sha512
9355093daed07e3a855552cede360ff15f654b7d4832bb1f15e73d5a27d053d2ce4c074a5b70d9e3e98e1c0a74415cfd42a2599a19f8b968aeded2e156537c77
ripemd-160
c3cb600b5a5a6775ae38d15e0740f9ad6d161415
Diameter
163224868
Circumference
512786046.19196
Area
2.0924858675481E+16
Volume
2.2769715301494E+24
Surface area
8.3699434701925E+16
Circumference
512786046.19196
Perimeter
326449736
Area
6660589383404356
Diagonal
115417411.02108
Surface area
39963536300426136
Volume
5.4358691145419E+23
Space diagonal
141356882.21736
Perimeter
244837302
Area
2.8841198051026E+15
Altitude
70678441.108681
Surface area
2.8841198051026E+15
Volume
6.4062331875585E+22
Height
38472470.34036