72156665 is an odd 8-digits composite number following 72156664
and preceding 72156666 . In scientific notation, it is written as 7.2156665 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 49267680 positive integers (up to 72156665) that are relatively prime to 72156665.
72156665 has 16 divisors, whose sum is 85183488
The reverse of 72156665 is 56665127
Previous prime number is 311
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-two million one hundred fifty-six thousand six hundred sixty-five
Scientific notation
7.2156665 × 10^7
Engineering notation
7.2156665 × 10^6
Prime Factorization
35 × 7 × 311 × 947
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
72156665
Product of the distinct prime numbers
The prime factorization of 72156665 is 35 × 7 × 311 × 947.
Since it has a total of 4 prime factors.
7 , 8 , 15 , 84 , 430 , 14 , 9392 , 1202 , 36159 , 16304 , 873433 , 309931 , 3943825 , 4052077 , 52175027 , 43651768 , 260999745 , 423256420 , 9124495540 , 6523564180
n×2
144313330
n×3
216469995
n×4
288626660
n×5
360783325
n÷2
36078332.5
n÷3
24052221.666667
n÷3
18039166.25
n÷5
14431333
n2
5206584303922225
n3
3.7568975941237E+23
n4
2.7108520113849E+31
n5
1.9560604045008E+39
2 √n
8494.5079315991
3 √n
416.31828336875
4 √n
92.165654837358
5 √n
37.295401810099
1 , 7 , 35 , 245 , 311 , 947 , 2177 , 6629 , 10885 , 33145 , 76195 , 232015 , 294517 , 2061619 , 10308095 , 72156665
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
-72156664
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 72156665 can be divided by 16 positive divisors.
The sum of these divisors (counting 72156665) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010011010000010111111001
3
Ternary
12000202221100002
4
Quaternary
10103100113321
5
Quinary
121433003130
6
Senary
11054322345
8
Octal
423202771
10
Decimal
72156665
12
Duodecimal
201b93b5
16
Hexadecimal
44d05f9
20
Vigesimal
12ajbd5
36
Base36
16ykft
md5
54e41abb012413da4a1e4eef95afd3e4
sha1
20af71c463a7016750717bc23c0dbe0d60007837
sha256
5aed2eca33c71d3f1e956f067cab4b4b8cb1afae55c86cde9fac4642053d9951
sha512
1c6bbbe4cfb5f549d491579a5856fe7252a48ea34e6253713a8e3ba2fcff76546bdd5e2be083aa5a5e5df59eee9c813a4604ce110411357fbb9a7f271e374a50
ripemd-160
b2cb41aa5632282738c2385edcf269889a3ddf01
Diameter
144313330
Circumference
453373697.34308
Area
1.6356966999498E+16
Volume
1.5736855842651E+24
Surface area
6.5427867997992E+16
Circumference
453373697.34308
Perimeter
288626660
Area
5206584303922225
Diagonal
102044934.25861
Surface area
31239505823533350
Volume
3.7568975941237E+23
Space diagonal
124979009.88473
Perimeter
216469995
Area
2.254517137071E+15
Altitude
62489504.942363
Surface area
2.254517137071E+15
Volume
4.4275462750472E+22
Height
34014978.086204