81121346 is an even 8-digits composite number following 81121345
and preceding 81121347 . In scientific notation, it is written as 8.1121346 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 40560672 positive integers (up to 81121346) that are relatively prime to 81121346.
81121346 has 4 divisors, whose sum is 121682022
The reverse of 81121346 is 64312118
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million one hundred twenty-one thousand three hundred forty-six
Scientific notation
8.1121346 × 10^7
Engineering notation
8.1121346 × 10^6
Prime Factorization
2 × 40560673
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81121346
Product of the distinct prime numbers
The prime factorization of 81121346 is 2 × 40560673.
Since it has a total of 2 prime factors.
10 , 4 , 55 , 100 , 3 , 917 , 8636 , 6818 , 22592 , 69646 , 676458 , 675162 , 8796777 , 349789 , 6156365 , 90483172 , 33337429 , 337764917 , 5295717893 , 1717506595
n×2
162242692
n×3
243364038
n×4
324485384
n×5
405606730
n÷2
40560673
n÷3
27040448.666667
n÷3
20280336.5
n÷5
16224269.2
n2
6580672776851716
n3
5.3383303324377E+23
n4
4.3305254195997E+31
n5
3.5129805092514E+39
2 √n
9006.7389214965
3 √n
432.89082651732
4 √n
94.903840393824
5 √n
38.179218073083
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
-81121345
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 81121346 can be divided by 4 positive divisors.
The sum of these divisors (counting 81121346) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101011101000001000010
3
Ternary
12122122101120022
4
Quaternary
10311131001002
5
Quinary
131231340341
6
Senary
12014413442
8
Octal
465350102
10
Decimal
81121346
12
Duodecimal
23201282
16
Hexadecimal
4d5d042
20
Vigesimal
1570376
36
Base36
1capmq
md5
01647b9ebdd28daa49508932f4ba24a6
sha1
0ffb1f37fc69b856fac88b5ca136eeab791fef1d
sha256
11a22ca270089de92741cc6d9a06c728427cf13eb46a628687aab6cfc6389cfa
sha512
88f5e769b203c120271be5fb219d542766f95d142db755f9913a32a69b73e373c9d265632b43ad9ef74ddb016d2c4d8afd52758b7b9e36eeddd2c092829e1a78
ripemd-160
f2749dde6fc1481fcf2531281d71d91166bff08c
Diameter
162242692
Circumference
509700449.28583
Area
2.0673793251436E+16
Volume
2.2361145806429E+24
Surface area
8.2695173005743E+16
Circumference
509700449.28583
Perimeter
324485384
Area
6580672776851716
Diagonal
114722907.71116
Surface area
39484036661110296
Volume
5.3383303324377E+23
Space diagonal
140506292.85037
Perimeter
243364038
Area
2.8495148993731E+15
Altitude
70253146.425187
Surface area
2.8495148993731E+15
Volume
6.2912826304675E+22
Height
38240969.237053