13721821 is an odd 8-digits composite number following 13721820
and preceding 13721822 . In scientific notation, it is written as 1.3721821 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 13673052 positive integers (up to 13721821) that are relatively prime to 13721821.
13721821 has 4 divisors, whose sum is 13770592
The reverse of 13721821 is 12812731
Previous prime number is 283
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
thirteen million seven hundred twenty-one thousand eight hundred twenty-one
Scientific notation
1.3721821 × 10^7
Engineering notation
1.3721821 × 10^6
Prime Factorization
283 × 48487
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
13721821
Product of the distinct prime numbers
The prime factorization of 13721821 is 283 × 48487.
Since it has a total of 2 prime factors.
9 , 5 , 31 , 42 , 416 , 626 , 4357 , 3757 , 79118 , 30609 , 369167 , 411569 , 4897508 , 6473308 , 38310567 , 45537920 , 650242226 , 719636987 , 6305851500 , 7225260267
n×2
27443642
n×3
41165463
n×4
54887284
n×5
68609105
n÷2
6860910.5
n÷3
4573940.3333333
n÷3
3430455.25
n÷5
2744364.2
n2
188288371556041
n3
2.5836593308735E+21
n4
3.5452510863226E+28
n5
4.8647300806574E+35
2 √n
3704.2976392293
3 √n
239.40722344782
4 √n
60.862941427681
5 √n
26.759768372341
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
-13721820
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 13721821 can be divided by 4 positive divisors.
The sum of these divisors (counting 13721821) is 1, the average is 0.25.
Base
System
Value
2
Binary
110100010110000011011101
3
Ternary
221211010210121
4
Quaternary
310112003131
5
Quinary
12003044241
6
Senary
1210034541
8
Octal
64260335
10
Decimal
13721821
12
Duodecimal
4718a51
16
Hexadecimal
d160dd
20
Vigesimal
45f4b1
36
Base36
863tp
md5
ca068d8e597d534a36dc68343ecc4de6
sha1
8ebb3d4f3df2f8216d5a2b1fdb4afb84c3ddeb7b
sha256
ce784f1a945891d34b597282fd4dc6080d397c17e387dd3e6eacbd450c9edd16
sha512
3324e0cd0676371f234e7eeb84630dfd1296bce9f816aa833fd50b31f3330baebc8d9757b27bb4d3bb208e5ae2c2d8cb6f5b3830fc62342542bc5cc92c6149e8
ripemd-160
921a68ba69df7395ec10569f2684737a934af2dd
Diameter
27443642
Circumference
86216744.094948
Area
5.9152536483684E+14
Volume
1.0822406897668E+22
Surface area
2.3661014593474E+15
Circumference
86216744.094948
Perimeter
54887284
Area
188288371556041
Diagonal
19405585.358656
Surface area
1129730229336246
Volume
2.5836593308735E+21
Space diagonal
23766891.144366
Perimeter
41165463
Area
81531256502367
Altitude
11883445.572183
Surface area
81531256502367
Volume
3.0448717218942E+20
Height
6468528.4528853