81964142 is an even 8-digits composite number following 81964141
and preceding 81964143 . In scientific notation, it is written as 8.1964142 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 37829592 positive integers (up to 81964142) that are relatively prime to 81964142.
81964142 has 8 divisors, whose sum is 132403656
The reverse of 81964142 is 24146918
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-one million nine hundred sixty-four thousand one hundred forty-two
Scientific notation
8.1964142 × 10^7
Engineering notation
8.1964142 × 10^6
Prime Factorization
2 × 13 × 3152467
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81964142
Product of the distinct prime numbers
The prime factorization of 81964142 is 2 × 13 × 3152467.
Since it has a total of 3 prime factors.
4 , 9 , 44 , 6 , 101 , 534 , 7104 , 8811 , 82658 , 78242 , 885714 , 840825 , 4110527 , 9670129 , 42127747 , 96548421 , 496672568 , 578376960 , 8174162741 , 9223111198
n×2
163928284
n×3
245892426
n×4
327856568
n×5
409820710
n÷2
40982071
n÷3
27321380.666667
n÷3
20491035.5
n÷5
16392828.4
n2
6718120573796164
n3
5.5064498868375E+23
n4
4.5133144044063E+31
n5
3.6992994273341E+39
2 √n
9053.4049948072
3 √n
434.38481234498
4 √n
95.149382524571
5 √n
38.258221692385
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
-81964141
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 81964142 can be divided by 8 positive divisors.
The sum of these divisors (counting 81964142) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111000101010110001101110
3
Ternary
12201020012122222
4
Quaternary
10320222301232
5
Quinary
131440323032
6
Senary
12044435342
8
Octal
470526156
10
Decimal
81964142
12
Duodecimal
23548b52
16
Hexadecimal
4e2ac6e
20
Vigesimal
15c5a72
36
Base36
1csrxq
md5
9c4b0ef6f61aad36dcc4d9306fee308c
sha1
5ad8d4e7e4f4bd29f3dc82af3fe64096c0d4da6b
sha256
0a8dad7b80d304ef8e714c8a2e3af5c538dbce678f2b9bd180e529a454dd0ee6
sha512
b69d6fca736ccc9e1c646a333d5044ef4e5de37de28fba897c9bc46832939e9845bf0f77832117da0e1a0def8d442b17b20980984287705195b6386243e0d774
ripemd-160
d34c867aee6d24343b0a3d6cb31da8c3ea7e2b7f
Diameter
163928284
Circumference
514995892.72998
Area
2.1105598240568E+16
Volume
2.3065363349132E+24
Surface area
8.4422392962274E+16
Circumference
514995892.72998
Perimeter
327856568
Area
6718120573796164
Diagonal
115914801.24467
Surface area
40308723442776984
Volume
5.5064498868375E+23
Space diagonal
141966058.34279
Perimeter
245892426
Area
2.9090315412972E+15
Altitude
70983029.171395
Surface area
2.9090315412972E+15
Volume
6.4894134254112E+22
Height
38638267.081558