72181885 is an odd 8-digits composite number following 72181884
and preceding 72181886 . In scientific notation, it is written as 7.2181885 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 57184464 positive integers (up to 72181885) that are relatively prime to 72181885.
72181885 has 8 divisors, whose sum is 87459840
The reverse of 72181885 is 58818127
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
seventy-two million one hundred eighty-one thousand eight hundred eighty-five
Scientific notation
7.2181885 × 10^7
Engineering notation
7.2181885 × 10^6
Prime Factorization
5 × 103 × 140159
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72181885
Product of the distinct prime numbers
The prime factorization of 72181885 is 5 × 103 × 140159.
Since it has a total of 3 prime factors.
3 , 6 , 49 , 7 , 998 , 658 , 5070 , 8751 , 3503 , 8839 , 106304 , 287677 , 6602264 , 2138646 , 18471177 , 98803678 , 164637973 , 855006541 , 834064437 , 2017585431
n×2
144363770
n×3
216545655
n×4
288727540
n×5
360909425
n÷2
36090942.5
n÷3
24060628.333333
n÷3
18045471.25
n÷5
14436377
n2
5210224522153225
n3
3.7608382728224E+23
n4
2.7146439571247E+31
n5
1.9594811792912E+39
2 √n
8495.9922904861
3 √n
416.36678119445
4 √n
92.173707153863
5 √n
37.298008523034
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
-72181884
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 72181885 can be divided by 8 positive divisors.
The sum of these divisors (counting 72181885) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010011010110100001111101
3
Ternary
12000211012221011
4
Quaternary
10103112201331
5
Quinary
121434310020
6
Senary
11055035221
8
Octal
423264175
10
Decimal
72181885
12
Duodecimal
2020bb11
16
Hexadecimal
44d687d
20
Vigesimal
12b2ee5
36
Base36
16z3wd
md5
1f8de76357d6a037b327100489202a6a
sha1
599cbda0ecb4d6ec8b02b96f82ea65547d2eea51
sha256
dfef8b281f9caa988cf817570ff4b5bb6110869158a66e51986e1802d6fedab3
sha512
6e94b8185fc5489cacb89cfb6c99c56a37b6c6d230b7236f5f59f4c012caefeba935e0fc1060756e48a447250bcbb7a1601fa153e3b8c16a4a5a179b2a722dae
ripemd-160
0ee71384ca50b0948427ab3ef8d510b72ee12c1d
Diameter
144363770
Circumference
453532159.27653
Area
1.636840308235E+16
Volume
1.5753362518984E+24
Surface area
6.54736123294E+16
Circumference
453532159.27653
Perimeter
288727540
Area
5210224522153225
Diagonal
102080600.72466
Surface area
31261347132919350
Volume
3.7608382728224E+23
Space diagonal
125022692.20609
Perimeter
216545655
Area
2.2560933978027E+15
Altitude
62511346.103047
Surface area
2.2560933978027E+15
Volume
4.4321904094311E+22
Height
34026866.908218