130721815 is an odd 9-digits composite number following 130721814
and preceding 130721816 . In scientific notation, it is written as 1.30721815 × 10^8.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 89637792 positive integers (up to 130721815) that are relatively prime to 130721815.
130721815 has 4 divisors, whose sum is 134456760
The reverse of 130721815 is 518127031
Previous prime number is 35
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 28
Digital Root 1
Name
one hundred thirty million seven hundred twenty-one thousand eight hundred fifteen
Scientific notation
1.30721815 × 10^8
Engineering notation
1.30721815 × 10^6
Prime Factorization
35 × 3734909
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
130721815
Product of the distinct prime numbers
The prime factorization of 130721815 is 35 × 3734909.
Since it has a total of 2 prime factors.
3 , 9 , 13 , 44 , 430 , 524 , 5739 , 2377 , 98366 , 58508 , 266922 , 591512 , 2096994 , 1395894 , 94869780 , 22130425 , 532673159 , 571403245 , 136669221 , 272042575
n×2
261443630
n×3
392165445
n×4
522887260
n×5
653609075
n÷2
65360907.5
n÷3
43573938.333333
n÷3
32680453.75
n÷5
26144363
n2
17088192916894225
n3
2.2337995931666E+24
n4
2.9200633716499E+32
n5
3.817159838571E+40
2 √n
11433.364115605
3 √n
507.51555356896
4 √n
106.92691015645
5 √n
42.001965496483
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-130721814
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 130721815 can be divided by 4 positive divisors.
The sum of these divisors (counting 130721815) is 1, the average is 0.25.
Base
System
Value
2
Binary
111110010101010100000010111
3
Ternary
100002222100121201
4
Quaternary
13302222200113
5
Quinary
231431044230
6
Senary
20545453331
8
Octal
762524027
10
Decimal
130721815
12
Duodecimal
37941247
16
Hexadecimal
7caa817
20
Vigesimal
20h04af
36
Base36
25ttlj
md5
359063af5fa2bbbc53c8db77fdab312b
sha1
453ef18881c94244d3c5b4661dbf97f84abaf312
sha256
1a7614b5c480133de9f265e521576bda7cf1209324aaf15033bbcd2fe48c0c5e
sha512
583da8c18d99ea13fa0a57bb953753966b99527fca96200f64d9eda63bac84c5bafe9d988984d686f44fee3a74039dee219a98143be32189297032891c4dbf61
ripemd-160
9ca9dcb9b99022f5568ec9895dab868ac9d50c53
Diameter
261443630
Circumference
821349387.33585
Area
5.368414133084E+16
Volume
9.3569178553119E+24
Surface area
2.1473656532336E+17
Circumference
821349387.33585
Perimeter
522887260
Area
17088192916894225
Diagonal
184868563.67103
Surface area
102529157501365350
Volume
2.2337995931666E+24
Space diagonal
226416825.23762
Perimeter
392165445
Area
7.3994045853999E+15
Altitude
113208412.61881
Surface area
7.3994045853999E+15
Volume
2.6325580668997E+23
Height
61622854.557009