72131885 is an odd 8-digits composite number following 72131884
and preceding 72131886 . In scientific notation, it is written as 7.2131885 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 45334080 positive integers (up to 72131885) that are relatively prime to 72131885.
72131885 has 8 divisors, whose sum is 74592000
The reverse of 72131885 is 58813127
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
seventy-two million one hundred thirty-one thousand eight hundred eighty-five
Scientific notation
7.2131885 × 10^7
Engineering notation
7.2131885 × 10^6
Prime Factorization
665 × 31 × 3499
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72131885
Product of the distinct prime numbers
The prime factorization of 72131885 is 665 × 31 × 3499.
Since it has a total of 3 prime factors.
3 , 10 , 62 , 11 , 845 , 572 , 4775 , 8220 , 86655 , 62435 , 963769 , 533185 , 4758497 , 7380849 , 29905646 , 57742374 , 706425930 , 646597049 , 8913374817 , 5926056909
n×2
144263770
n×3
216395655
n×4
288527540
n×5
360659425
n÷2
36065942.5
n÷3
24043961.666667
n÷3
18032971.25
n÷5
14426377
n2
5203008833653225
n3
3.7530283484306E+23
n4
2.7071300923073E+31
n5
1.9527039649835E+39
2 √n
8493.0492168596
3 √n
416.27062065118
4 √n
92.157740949199
5 √n
37.292839865099
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
-72131884
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 72131885 can be divided by 8 positive divisors.
The sum of these divisors (counting 72131885) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010011001010010100101101
3
Ternary
12000201200100022
4
Quaternary
10103022110231
5
Quinary
121431210020
6
Senary
11054011525
8
Octal
423122455
10
Decimal
72131885
12
Duodecimal
201a6ba5
16
Hexadecimal
44ca52d
20
Vigesimal
12ag9e5
36
Base36
16y1bh
md5
1b2720e2200cec97b192c384aebb3bb3
sha1
ecd2793679db11fe4fa0c0d801aa78aec883c1c6
sha256
b10709dceb482c2afd54eee0d14b34b8f6badfb9287584d3f4d7a5b4a007a154
sha512
fd2d280b10acfec3216a67f340009fe7e617190461b96af11daa7ce80525a707875fac5375570e894da90be69631c7246d5b4db74feb5a31ae700c8e418a4848
ripemd-160
6d4a88e6d304a7b427dd625b23fc8f6e401fb4ee
Diameter
144263770
Circumference
453218000.01117
Area
1.6345734328368E+16
Volume
1.5720648384192E+24
Surface area
6.5382937313471E+16
Circumference
453218000.01117
Perimeter
288527540
Area
5203008833653225
Diagonal
102009890.04654
Surface area
31218053001919350
Volume
3.7530283484306E+23
Space diagonal
124936089.66572
Perimeter
216395655
Area
2.2529689130293E+15
Altitude
62468044.832858
Surface area
2.2529689130293E+15
Volume
4.4229863252677E+22
Height
34003296.682179