72509987 is an odd 8-digits composite number following 72509986
and preceding 72509988 . In scientific notation, it is written as 7.2509987 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 65581600 positive integers (up to 72509987) that are relatively prime to 72509987.
72509987 has 8 divisors, whose sum is 79505712
The reverse of 72509987 is 78990527
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
seventy-two million five hundred nine thousand nine hundred eighty-seven
Scientific notation
7.2509987 × 10^7
Engineering notation
7.2509987 × 10^6
Prime Factorization
11 × 197 × 33461
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72509987
Product of the distinct prime numbers
The prime factorization of 72509987 is 11 × 197 × 33461.
Since it has a total of 3 prime factors.
7 , 9 , 87 , 7 , 133 , 229 , 1967 , 2676 , 76984 , 1039 , 319314 , 513458 , 9548670 , 6730623 , 61790094 , 95295523 , 730954521 , 629245846 , 9501151511 , 893205800
n×2
145019974
n×3
217529961
n×4
290039948
n×5
362549935
n÷2
36254993.5
n÷3
24169995.666667
n÷3
18127496.75
n÷5
14501997.4
n2
5257698214740169
n3
3.8123562920073E+23
n4
2.7643390517282E+31
n5
2.004421887044E+39
2 √n
8515.2796196015
3 √n
416.99669134966
4 √n
92.278272738503
5 √n
37.331854581277
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
-72509986
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 72509987 can be divided by 8 positive divisors.
The sum of these divisors (counting 72509987) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010100100110101000100011
3
Ternary
12001102220000002
4
Quaternary
10110212220203
5
Quinary
122030304422
6
Senary
11110050215
8
Octal
424465043
10
Decimal
72509987
12
Duodecimal
2034996b
16
Hexadecimal
4526a23
20
Vigesimal
12d3ej7
36
Base36
17652b
md5
91887e524e3ad66ca6e38836f9016243
sha1
1fdda5e0fb694b7a5290380ea789a3ac861c1ce6
sha256
4074f04e31ad38749944c05be6186945de50d39119eb05ccbedd62e7b745c7be
sha512
cf8363074e66555b5e9c57f11b89948c0c3981105bd600b79efdf29f54435ff2fbcc293c1658286ae27174f138edbbbfc96c862e34ddf32b133ad5d69cce0f7b
ripemd-160
73605b0b765db245cc1735bab1f7175a65d5d609
Diameter
145019974
Circumference
455593684.94218
Area
1.651754608622E+16
Volume
1.5969160693116E+24
Surface area
6.607018434488E+16
Circumference
455593684.94218
Perimeter
290039948
Area
5257698214740169
Diagonal
102544607.0229
Surface area
31546189288441014
Volume
3.8123562920073E+23
Space diagonal
125590981.54016
Perimeter
217529961
Area
2.2766501096985E+15
Altitude
62795490.770079
Surface area
2.2766501096985E+15
Volume
4.492904977296E+22
Height
34181535.674299