81559964 is an even 8-digits composite number following 81559963
and preceding 81559965 . In scientific notation, it is written as 8.1559964 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 6 positive divisors.
There are 40779980 positive integers (up to 81559964) that are relatively prime to 81559964.
81559964 has 6 divisors, whose sum is 142729944
The reverse of 81559964 is 46995518
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighty-one million five hundred fifty-nine thousand nine hundred sixty-four
Scientific notation
8.1559964 × 10^7
Engineering notation
8.1559964 × 10^6
Prime Factorization
2 × 2 × 20389991
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
40779982
Product of the distinct prime numbers
The prime factorization of 81559964 is 2 × 2 × 20389991.
Since it has a total of 3 prime factors.
5 , 6 , 73 , 19 , 831 , 198 , 4527 , 9092 , 19968 , 44467 , 742300 , 319796 , 9711527 , 2115465 , 29517447 , 28969787 , 510707145 , 820045308 , 4751466669 , 3628746954
n×2
163119928
n×3
244679892
n×4
326239856
n×5
407799820
n÷2
40779982
n÷3
27186654.666667
n÷3
20389991
n÷5
16311992.8
n2
6652027727681296
n3
5.4253914199669E+23
n4
4.4249472889841E+31
n5
3.6089854159144E+39
2 √n
9031.0555307782
3 √n
433.66962901684
4 √n
95.031865870234
5 √n
38.22041559291
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
-81559963
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 81559964 can be divided by 6 positive divisors.
The sum of these divisors (counting 81559964) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100110111001000000110011100
3
Ternary
12200110200020102
4
Quaternary
10313020012130
5
Quinary
131334404324
6
Senary
12032040232
8
Octal
467100634
10
Decimal
81559964
12
Duodecimal
23393078
16
Hexadecimal
4dc819c
20
Vigesimal
159eji4
36
Base36
1ck42k
md5
4b3e019c78e4d5ea91fe201d3ce3346b
sha1
c7019f66ae27096d2ee1f4ae0ba198a18c315ba2
sha256
66d5609f53bba035e1453af9a1d345ada29b129952432e97e286aacfd64f38eb
sha512
0120ff3461d1a6e18b626a4a481c4c4904fb3ba74cac85e4c2dc6e19a15490250a700e65198ad1a22d0dbe8e388bfc39c6849389e2ad6d6746ab1c3a3e6bb9ca
ripemd-160
7961c87909af852c9cfc8ffc260786428c8604f6
Diameter
163119928
Circumference
512456367.4589
Area
2.0897961440759E+16
Volume
2.2725826437089E+24
Surface area
8.3591845763037E+16
Circumference
512456367.4589
Perimeter
326239856
Area
6652027727681296
Diagonal
115343207.23546
Surface area
39912166366087776
Volume
5.4253914199669E+23
Space diagonal
141266001.51149
Perimeter
244679892
Area
2.8804124994252E+15
Altitude
70633000.755744
Surface area
2.8804124994252E+15
Volume
6.3938851060832E+22
Height
38447735.745154