81620004 is an even 8-digits composite number following 81620003
and preceding 81620005 . In scientific notation, it is written as 8.1620004 × 10^7.
The sum of its digits is 21. It has a total of 5 prime factors and 24 positive divisors.
There are 27185760 positive integers (up to 81620004) that are relatively prime to 81620004.
81620004 has 24 divisors, whose sum is 190593088
The reverse of 81620004 is 40002618
Previous prime number is 2437
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
eighty-one million six hundred twenty thousand four
Scientific notation
8.1620004 × 10^7
Engineering notation
8.1620004 × 10^6
Prime Factorization
2 × 2 × 3 × 2437 × 2791
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
40810002
Product of the distinct prime numbers
The prime factorization of 81620004 is 2 × 2 × 3 × 2437 × 2791.
Since it has a total of 5 prime factors.
5 , 7 , 12 , 29 , 289 , 658 , 5521 , 2249 , 28414 , 55614 , 778219 , 266347 , 5211351 , 4623623 , 98700123 , 5103914 , 235619146 , 253548646 , 7776367372 , 6948384335
n×2
163240008
n×3
244860012
n×4
326480016
n×5
408100020
n÷2
40810002
n÷3
27206668
n÷3
20405001
n÷5
16324000.8
n2
6661825052960016
n3
5.437381874699E+23
n4
4.4379913036246E+31
n5
3.622288679538E+39
2 √n
9034.3790046688
3 √n
433.77601756307
4 √n
95.049350364265
5 √n
38.226041094023
1 , 2 , 3 , 4 , 6 , 12 , 2437 , 2791 , 4874 , 5582 , 7311 , 8373 , 9748 , 11164 , 14622 , 16746 , 29244 , 33492 , 6801667 , 13603334 , 20405001 , 27206668 , 40810002 , 81620004
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81620003
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81620004 can be divided by 24 positive divisors.
The sum of these divisors (counting 81620004) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110111010110110000100100
3
Ternary
12200120201121010
4
Quaternary
10313112300210
5
Quinary
131343320004
6
Senary
12033222220
8
Octal
467266044
10
Decimal
81620004
12
Duodecimal
23401970
16
Hexadecimal
4dd6c24
20
Vigesimal
15a2a04
36
Base36
1cleec
md5
91faee83900815ab2645d6ac7c0716ef
sha1
a1a122bee27f83539eb0a4bebe8bfe248ef0b826
sha256
7ca4f41a9c7b625f7fd5c9312595572c9a137ac0f6c0ae5e87f5d553f7d1934a
sha512
ca5e98311200129b9b613a7210158f7f8bde183d075ce8b80f0d1a5211745b4fece54820d981627329818a5e5e2608443cae3dac3c59fabea6404f01d9491bc0
ripemd-160
73e5c9e1fab5f911174efb001841f3129ee1fcac
Diameter
163240008
Circumference
512833609.90474
Area
2.092874064588E+16
Volume
2.2776051936422E+24
Surface area
8.3714962583518E+16
Circumference
512833609.90474
Perimeter
326480016
Area
6661825052960016
Diagonal
115428116.61775
Surface area
39970950317760096
Volume
5.437381874699E+23
Space diagonal
141369993.84197
Perimeter
244860012
Area
2.8846548657155E+15
Altitude
70684996.920987
Surface area
2.8846548657155E+15
Volume
6.4080159925008E+22
Height
38476038.872582