1321520391 is an odd 10-digits composite number following 1321520390
and preceding 1321520392 . In scientific notation, it is written as 1.321520391 × 10^9.
The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors.
There are 861921216 positive integers (up to 1321520391) that are relatively prime to 1321520391.
1321520391 has 24 divisors, whose sum is 1950436800
The reverse of 1321520391 is 1930251231
Previous prime number is 367
Is Prime? no Number parity odd Number length 10 Sum of Digits 27 Digital Root 9
Name
one billion three hundred twenty-one million five hundred twenty thousand three hundred ninety-one
Scientific notation
1.321520391 × 10^9
Engineering notation
1.321520391 × 10^9
Prime Factorization
3 × 3 × 53 × 367 × 7549
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
440506797 Product of the distinct prime numbers
The prime factorization of 1321520391 is 3 × 3 × 53 × 367 × 7549.
Since it has a total of 5 prime factors.
1 , 9 , 56 , 74 , 566 , 53 , 530 , 3411 , 56494 , 28555 , 474001 , 131405 , 3048289 , 3786981 , 85397145 , 42133240 , 226534716 , 817651973 , 8771114855 , 2895866400
n×2
2643040782
n×3
3964561173
n×4
5286081564
n×5
6607601955
n÷2
660760195.5
n÷3
440506797
n÷3
330380097.75
n÷5
264304078.2
n2
1746416143828792881
n3
2.3079245452413E+27
n4
3.0499693474258E+36
n5
4.0305966845482E+45
2 √n36352.721920098
3 √n1097.382313057
4 √n190.66389778901
5 √n66.713660991491
1 , 3 , 9 , 53 , 159 , 367 , 477 , 1101 , 3303 , 7549 , 19451 , 22647 , 58353 , 67941 , 175059 , 400097 , 1200291 , 2770483 , 3600873 , 8311449 , 24934347 , 146835599 , 440506797 , 1321520391
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1321520390 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1321520391 can be divided by 24 positive divisors.
The sum of these divisors (counting 1321520391) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001110110001001100110100000111
3
Ternary
10102002200012011200
4
Quaternary
1032301030310013
5
Quinary
10201302123031
6
Senary
335044433543
8
Octal
11661146407
10
Decimal
1321520391
12
Duodecimal
30a6a88b3
16
Hexadecimal
4ec4cd07
20
Vigesimal
10cja0jb
36
Base36
lusrnr
md5
b588918814831c2a89c992862cf99cc8
sha1
c06b15339073956e5f5551a88f3fe305fea05676
sha256
6aa1fc9b9cdfb1473ae204bf4a1d4d55b8c84ec1c273e8f8029b9b1b4d1632ed
sha512
f1cb50923ac1de5be94da25907d18a3d1d8045c9b568196cfa2df315a11f6b95def00e96f58316031a6c60b173e6cc7d218c9d35a6f73de176b1b6beb8a6decf
ripemd-160
cc3827887a1cdcee5810da0780c8236828cd3573
Diameter
2643040782
Circumference
8303357503.8694
Area
5.4865281275632E+18
Volume
9.667411728493E+27
Surface area
2.1946112510253E+19
Circumference
8303357503.8694
Perimeter
5286081564
Area
1746416143828792881
Diagonal
1868912059.9048
Surface area
1.0478496862973E+19
Volume
2.3079245452413E+27
Space diagonal
2288940460.4503
Perimeter
3964561173
Area
7.562203730675E+17
Altitude
1144470230.2251
Surface area
7.562203730675E+17
Volume
2.7199151606784E+26
Height
622970686.63493