72087918 is an even 8-digits composite number following 72087917
and preceding 72087919 . In scientific notation, it is written as 7.2087918 × 10^7.
The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors.
There are 20509104 positive integers (up to 72087918) that are relatively prime to 72087918.
72087918 has 32 divisors, whose sum is 130014720
The reverse of 72087918 is 81978027
Previous prime number is 683
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
seventy-two million eighty-seven thousand nine hundred eighteen
Scientific notation
7.2087918 × 10^7
Engineering notation
7.2087918 × 10^6
Prime Factorization
2 × 21 × 7 × 683 × 359
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
72087918
Product of the distinct prime numbers
The prime factorization of 72087918 is 2 × 21 × 7 × 683 × 359.
Since it has a total of 5 prime factors.
1 , 7 , 9 , 41 , 866 , 797 , 7297 , 4862 , 7899 , 67539 , 155872 , 915632 , 5886474 , 5183895 , 84737926 , 5596898 , 494673410 , 773068763 , 560694583 , 3932132530
n×2
144175836
n×3
216263754
n×4
288351672
n×5
360439590
n÷2
36043959
n÷3
24029306
n÷3
18021979.5
n÷5
14417583.6
n2
5196667921574724
n3
3.7461697100371E+23
n4
2.7005357487124E+31
n5
1.9467599960925E+39
2 √n
8490.4604115442
3 √n
416.18602611415
4 √n
92.143694366702
5 √n
37.288292488559
1 , 2 , 7 , 14 , 21 , 42 , 147 , 294 , 359 , 683 , 718 , 1366 , 2513 , 4781 , 5026 , 7539 , 9562 , 14343 , 15078 , 28686 , 52773 , 100401 , 105546 , 200802 , 245197 , 490394 , 1716379 , 3432758 , 5149137 , 10298274 , 36043959 , 72087918
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72087917
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72087918 can be divided by 32 positive divisors.
The sum of these divisors (counting 72087918) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100010010111111100101101110
3
Ternary
12000122110000220
4
Quaternary
10102333211232
5
Quinary
121423303133
6
Senary
11053032210
8
Octal
422774556
10
Decimal
72087918
12
Duodecimal
20185666
16
Hexadecimal
44bf96e
20
Vigesimal
12aajfi
36
Base36
16x3e6
md5
7eb72bed11d46d764b1e21a35d62b912
sha1
de6e32bd7c54fbe06acce22de17853c3b81e19a9
sha256
db7dadb0d11e0b353034a6206c5eb67310dceff7ddf88870e6824b3d813b164d
sha512
bff7bd6c0af19474f29a4fab9d6abc063cb75906f1277f6505968422ca4e8255366c10fba402afc0e438dc48f4d2d1981c21e2c72acf2feb80c60e01ce4a6c2b
ripemd-160
34f9207c8b326eb760590d5a7265af41e29d60e3
Diameter
144175836
Circumference
452941747.20277
Area
1.6325813765565E+16
Volume
1.5691918986871E+24
Surface area
6.530325506226E+16
Circumference
452941747.20277
Perimeter
288351672
Area
5196667921574724
Diagonal
101947711.31884
Surface area
31180007529448344
Volume
3.7461697100371E+23
Space diagonal
124859936.58786
Perimeter
216263754
Area
2.2502232175577E+15
Altitude
62429968.29393
Surface area
2.2502232175577E+15
Volume
4.4149033424048E+22
Height
33982570.439613