72188421 is an odd 8-digits composite number following 72188420
and preceding 72188422 . In scientific notation, it is written as 7.2188421 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 45900800 positive integers (up to 72188421) that are relatively prime to 72188421.
72188421 has 16 divisors, whose sum is 100725120
The reverse of 72188421 is 12488127
Previous prime number is 401
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
seventy-two million one hundred eighty-eight thousand four hundred twenty-one
Scientific notation
7.2188421 × 10^7
Engineering notation
7.2188421 × 10^6
Prime Factorization
3 × 23 × 401 × 2609
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
72188421
Product of the distinct prime numbers
The prime factorization of 72188421 is 3 × 23 × 401 × 2609.
Since it has a total of 4 prime factors.
5 , 5 , 59 , 55 , 123 , 75 , 8906 , 268 , 11796 , 24793 , 353038 , 537421 , 6123881 , 5846599 , 3222984 , 90262755 , 661987990 , 547896943 , 1999155179 , 8515498606
n×2
144376842
n×3
216565263
n×4
288753684
n×5
360942105
n÷2
36094210.5
n÷3
24062807
n÷3
18047105.25
n÷5
14437684.2
n2
5211168126473241
n3
3.7618599861563E+23
n4
2.7156273242371E+31
n5
1.9603684856113E+39
2 √n
8496.3769337289
3 √n
416.3793480185
4 √n
92.175793643065
5 √n
37.298683958303
1 , 3 , 23 , 69 , 401 , 1203 , 2609 , 7827 , 9223 , 27669 , 60007 , 180021 , 1046209 , 3138627 , 24062807 , 72188421
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
-72188420
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 72188421 can be divided by 16 positive divisors.
The sum of these divisors (counting 72188421) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010011011000001000000101
3
Ternary
12000211112220020
4
Quaternary
10103120020011
5
Quinary
121440012141
6
Senary
11055125353
8
Octal
423301005
10
Decimal
72188421
12
Duodecimal
20213859
16
Hexadecimal
44d8205
20
Vigesimal
12b3b11
36
Base36
16z8xx
md5
7d9d0381c1eab57b327b8eb0036f2ba6
sha1
c8ae99f1b1062b79c30f55bd0c72d747f0677ccc
sha256
e7be0076671969502f2d01700f081cd5c7c532b9ed72b30c82502353bfd732a9
sha512
47fdb647e8266e61a81a9fe69026cb9f650c7946ca31448af1ef29b2d133a3f3d4d294720ac06eff9b25e1298bf395cc6ca32712a86649f5f951053c09ab85d9
ripemd-160
8584fde440b2ad88095565b066975b912b399ed2
Diameter
144376842
Circumference
453573226.17569
Area
1.637136750275E+16
Volume
1.5757642261789E+24
Surface area
6.5485470010998E+16
Circumference
453573226.17569
Perimeter
288753684
Area
5211168126473241
Diagonal
102089844.0245
Surface area
31267008758839446
Volume
3.7618599861563E+23
Space diagonal
125034012.89017
Perimeter
216565263
Area
2.2565019904588E+15
Altitude
62517006.445086
Surface area
2.2565019904588E+15
Volume
4.4333945101424E+22
Height
34029948.008166