72156985 is an odd 8-digits composite number following 72156984
and preceding 72156986 . In scientific notation, it is written as 7.2156985 × 10^7.
The sum of its digits is 43. It has a total of 5 prime factors and 16 positive divisors.
There are 56090928 positive integers (up to 72156985) that are relatively prime to 72156985.
72156985 has 16 divisors, whose sum is 89107200
The reverse of 72156985 is 58965127
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
seventy-two million one hundred fifty-six thousand nine hundred eighty-five
Scientific notation
7.2156985 × 10^7
Engineering notation
7.2156985 × 10^6
Prime Factorization
5 × 47 × 47 × 47 × 139
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
32665
Product of the distinct prime numbers
The prime factorization of 72156985 is 5 × 47 × 47 × 47 × 139.
Since it has a total of 5 prime factors.
6 , 5 , 98 , 5 , 706 , 857 , 1480 , 9933 , 21306 , 82966 , 441390 , 448785 , 692956 , 5061391 , 20159471 , 50933184 , 225558161 , 964289925 , 2008996151 , 9046969368
n×2
144313970
n×3
216470955
n×4
288627940
n×5
360784925
n÷2
36078492.5
n÷3
24052328.333333
n÷3
18039246.25
n÷5
14431397
n2
5206630484290225
n3
3.7569475775547E+23
n4
2.710900099994E+31
n5
1.9561037785177E+39
2 √n
8494.5267672779
3 √n
416.31889879655
4 √n
92.165757021129
5 √n
37.295434889531
1 , 5 , 47 , 139 , 235 , 695 , 2209 , 6533 , 11045 , 32665 , 103823 , 307051 , 519115 , 1535255 , 14431397 , 72156985
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72156984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72156985 can be divided by 16 positive divisors.
The sum of these divisors (counting 72156985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010011010000011100111001
3
Ternary
12000202221202221
4
Quaternary
10103100130321
5
Quinary
121433010420
6
Senary
11054324041
8
Octal
423203471
10
Decimal
72156985
12
Duodecimal
201b9621
16
Hexadecimal
44d0739
20
Vigesimal
12ajc95
36
Base36
16ykop
md5
62a6a210362d107a2a4be75c572ef0fe
sha1
2e16d778ed230879d59512c793125e63eecb0ccd
sha256
fd76c7daa7136de133dfd7922dde3888058b7234d67ca7c39b3e714c29635ddd
sha512
5563ca6af81e563be0d48bbeab43a2fe260b3d2d28960c339f11346c59f463e7cf19d9e3c01b4021089ed8bcef87ebdbf0454e3b5a09cdb279ccf90b2d2858f9
ripemd-160
9472bbadea1132c1b5604d70c08d519509a49656
Diameter
144313970
Circumference
453375707.96238
Area
1.6357112079403E+16
Volume
1.5737065212757E+24
Surface area
6.5428448317611E+16
Circumference
453375707.96238
Perimeter
288627940
Area
5206630484290225
Diagonal
102045386.80695
Surface area
31239782905741350
Volume
3.7569475775547E+23
Space diagonal
124979564.14099
Perimeter
216470955
Area
2.2545371337569E+15
Altitude
62489782.070493
Surface area
2.2545371337569E+15
Volume
4.4276051810855E+22
Height
34015128.935651