15820121 is an odd 8-digits composite number following 15820120
and preceding 15820122 . In scientific notation, it is written as 1.5820121 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 15811200 positive integers (up to 15820121) that are relatively prime to 15820121.
15820121 has 4 divisors, whose sum is 15829044
The reverse of 15820121 is 12102851
Previous prime number is 2441
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
fifteen million eight hundred twenty thousand one hundred twenty-one
Scientific notation
1.5820121 × 10^7
Engineering notation
1.5820121 × 10^6
Prime Factorization
2441 × 6481
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
15820121
Product of the distinct prime numbers
The prime factorization of 15820121 is 2441 × 6481.
Since it has a total of 2 prime factors.
3 , 7 , 7 , 56 , 253 , 153 , 3104 , 4117 , 23091 , 51716 , 227624 , 467026 , 1212669 , 1646870 , 35326826 , 77106613 , 108910236 , 113548253 , 9711442631 , 138428708
n×2
31640242
n×3
47460363
n×4
63280484
n×5
79100605
n÷2
7910060.5
n÷3
5273373.6666667
n÷3
3955030.25
n÷5
3164024.2
n2
250276228454641
n3
3.9594002175761E+21
n4
6.263819052948E+28
n5
9.9094375339742E+35
2 √n
3977.451571044
3 √n
251.03634336682
4 √n
63.06704029082
5 √n
27.532266214473
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
-15820120
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 15820121 can be divided by 4 positive divisors.
The sum of these divisors (counting 15820121) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100010110010101011001
3
Ternary
1002202202010102
4
Quaternary
330112111121
5
Quinary
13022220441
6
Senary
1323025145
8
Octal
74262531
10
Decimal
15820121
12
Duodecimal
536b1b5
16
Hexadecimal
f16559
20
Vigesimal
4iha61
36
Base36
9f2vt
md5
531f065af8dd1f1826297666e277465f
sha1
9f3f15eccba5b57b9f7d1edb86f58af51733e4d9
sha256
a92b50064cf98988945096b8e97ee93ab85e37303a37bff84b8de812dfd63601
sha512
2d2bfa6bcb6f20f428acb8e1427e437b2418583d8a61d80ab20a001037153dcf3a3a6c53c8ec5e6aba78182b70f2bb1f600691a23dfc11c0aa879347692bd7cc
ripemd-160
a728bce05a072037e4f62d6cbaa666eb31ff138d
Diameter
31640242
Circumference
99400751.825003
Area
7.8626596068126E+14
Volume
1.6585096848212E+22
Surface area
3.145063842725E+15
Circumference
99400751.825003
Perimeter
63280484
Area
250276228454641
Diagonal
22373029.676583
Surface area
1501657370727846
Volume
3.9594002175761E+21
Space diagonal
27401253.353887
Perimeter
47460363
Area
1.0837278590254E+14
Altitude
13700626.676944
Surface area
1.0837278590254E+14
Volume
4.6661979054659E+20
Height
7457676.5588611