72181869 is an odd 8-digits composite number following 72181868
and preceding 72181870 . In scientific notation, it is written as 7.2181869 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 47966880 positive integers (up to 72181869) that are relatively prime to 72181869.
72181869 has 8 divisors, whose sum is 96551232
The reverse of 72181869 is 96818127
Previous prime number is 313
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
seventy-two million one hundred eighty-one thousand eight hundred sixty-nine
Scientific notation
7.2181869 × 10^7
Engineering notation
7.2181869 × 10^6
Prime Factorization
3 × 313 × 76871
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72181869
Product of the distinct prime numbers
The prime factorization of 72181869 is 3 × 313 × 76871.
Since it has a total of 3 prime factors.
1 , 9 , 28 , 12 , 508 , 36 , 5983 , 8170 , 97661 , 74009 , 315250 , 108753 , 1795686 , 4165247 , 12232800 , 25692913 , 459443573 , 662110259 , 716170718 , 5340681315
n×2
144363738
n×3
216545607
n×4
288727476
n×5
360909345
n÷2
36090934.5
n÷3
24060623
n÷3
18045467.25
n÷5
14436373.8
n2
5210222212333161
n3
3.7608357719152E+23
n4
2.714641550189E+31
n5
1.959479007577E+39
2 √n
8495.9913488657
3 √n
416.36675043018
4 √n
92.173702046005
5 √n
37.298006869522
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
-72181868
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 72181869 can be divided by 8 positive divisors.
The sum of these divisors (counting 72181869) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010011010110100001101101
3
Ternary
12000211012220120
4
Quaternary
10103112201231
5
Quinary
121434304434
6
Senary
11055035153
8
Octal
423264155
10
Decimal
72181869
12
Duodecimal
2020bab9
16
Hexadecimal
44d686d
20
Vigesimal
12b2ed9
36
Base36
16z3vx
md5
6b1b14cb624507e33796cde0ff936d3e
sha1
7e3092379e39c4e0f3eaa54e28beb8a01a9fb8db
sha256
2899f97ff08a12ef18dc757edc33fd920225fef5d5254edcb52c8935f14d13d3
sha512
ab476ab708b43c814ebeda9467c6b5a55b9709f60ab0211d36ed412838988423ffc2e728ee4b8e7552b4960535422aec3a007f782a6504699370e45f176f2378
ripemd-160
ebafe0581f53b6797d585cfdd986ac156ddf1e12
Diameter
144363738
Circumference
453532058.74556
Area
1.6368395825836E+16
Volume
1.5753352043209E+24
Surface area
6.5473583303345E+16
Circumference
453532058.74556
Perimeter
288727476
Area
5210222212333161
Diagonal
102080578.09724
Surface area
31261333273998966
Volume
3.7608357719152E+23
Space diagonal
125022664.49328
Perimeter
216545607
Area
2.2560923976212E+15
Altitude
62511332.24664
Surface area
2.2560923976212E+15
Volume
4.4321874620837E+22
Height
34026859.365746