72181880 is an even 8-digits composite number following 72181879
and preceding 72181881 . In scientific notation, it is written as 7.2181880 × 10^7.
The sum of its digits is 35. It has a total of 5 prime factors and 16 positive divisors.
There are 28872736 positive integers (up to 72181880) that are relatively prime to 72181880.
72181880 has 16 divisors, whose sum is 162409320
The reverse of 72181880 is 08818127
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
seventy-two million one hundred eighty-one thousand eight hundred eighty
Scientific notation
7.2181880 × 10^7
Engineering notation
7.2181880 × 10^6
Prime Factorization
2 × 2 × 2 × 5 × 1804547
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
18045470
Product of the distinct prime numbers
The prime factorization of 72181880 is 2 × 2 × 2 × 5 × 1804547.
Since it has a total of 5 prime factors.
7 , 8 , 82 , 82 , 305 , 419 , 7066 , 8611 , 2597 , 86099 , 405059 , 215932 , 3997687 , 449603 , 38016495 , 3274369 , 22011916 , 857141322 , 7211962157 , 8277144825
n×2
144363760
n×3
216545640
n×4
288727520
n×5
360909400
n÷2
36090940
n÷3
24060626.666667
n÷3
18045470
n÷5
14436376
n2
5210223800334400
n3
3.7608374912888E+23
n4
2.7146432049571E+31
n5
1.9594805006303E+39
2 √n
8495.9919962298
3 √n
416.36677158061
4 √n
92.173705557658
5 √n
37.298008006312
1 , 2 , 4 , 5 , 8 , 10 , 20 , 40 , 1804547 , 3609094 , 7218188 , 9022735 , 14436376 , 18045470 , 36090940 , 72181880
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
-72181879
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 72181880 can be divided by 16 positive divisors.
The sum of these divisors (counting 72181880) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010011010110100001111000
3
Ternary
12000211012220222
4
Quaternary
10103112201320
5
Quinary
121434310010
6
Senary
11055035212
8
Octal
423264170
10
Decimal
72181880
12
Duodecimal
2020bb08
16
Hexadecimal
44d6878
20
Vigesimal
12b2ee0
36
Base36
16z3w8
md5
4ddb4827ba538735efb65eaeedd0a2ff
sha1
f6ef3c6f95e192d810a3ab032a7777c90928026d
sha256
5e22c1aa0938b6f9164fbc3ee3ea3a03f505094e422d0e48a1fba25c8dd135c8
sha512
d6115c9e7e523afe6c9aedfad1208a4ea35679c5676ff81cbb3aefa519fd263bfbfe29d9b01d4296c42a572a4e9cd036d66a587e5c8d40d4d38fbed122637ff6
ripemd-160
c5b9b75fa9f4080dbb53427308c584da45b2386d
Diameter
144363760
Circumference
453532127.8606
Area
1.6368400814689E+16
Volume
1.5753359245304E+24
Surface area
6.5473603258757E+16
Circumference
453532127.8606
Perimeter
288727520
Area
5210223800334400
Diagonal
102080593.65359
Surface area
31261342802006400
Volume
3.7608374912888E+23
Space diagonal
125022683.54584
Perimeter
216545640
Area
2.2560930852459E+15
Altitude
62511341.77292
Surface area
2.2560930852459E+15
Volume
4.4321894883849E+22
Height
34026864.551196