21090161 is an odd 8-digits prime number following 21090160
and preceding 21090162 . In scientific notation, it is written as 2.1090161 × 10^7.
The sum of its digits is 20. It has a total of 1 prime factors and 2 positive divisors.
There are 21090160 positive integers (up to 21090161) that are relatively prime to 21090161.
21090161 has 2 divisors, whose sum is 21090162
The reverse of 21090161 is 16109012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million ninety thousand one hundred sixty-one
Scientific notation
2.1090161 × 10^7
Engineering notation
2.1090161 × 10^6
Prime Factorization
21090161
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21090161
Product of the distinct prime numbers
The prime factorization of 21090161 is 21090161.
Since it has a total of 1 prime factors.
9 , 9 , 91 , 14 , 828 , 381 , 7393 , 9934 , 88618 , 60319 , 520698 , 985525 , 4028456 , 5451741 , 52562402 , 67248500 , 219904222 , 597930142 , 8103914261 , 8200017000
n×2
42180322
n×3
63270483
n×4
84360644
n×5
105450805
n÷2
10545080.5
n÷3
7030053.6666667
n÷3
5272540.25
n÷5
4218032.2
n2
444794891005921
n3
9.3807958632923E+21
n4
1.9784249506497E+29
n5
4.1725300735619E+36
2 √n
4592.4025302667
3 √n
276.28669100365
4 √n
67.7672673956
5 √n
29.161910921337
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21090162
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10545081
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4592.4026391422
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999051691
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21090161 can be divided by 2 positive divisors.
The sum of these divisors (counting 21090161) is 21090162, the average is 10545081.
Base
System
Value
2
Binary
1010000011100111101110001
3
Ternary
1110200111021002
4
Quaternary
1100130331301
5
Quinary
20344341121
6
Senary
2032011345
8
Octal
120347561
10
Decimal
21090161
12
Duodecimal
7090b55
16
Hexadecimal
141cf71
20
Vigesimal
6bg581
36
Base36
ck19t
md5
c1fb556f6f6a9395ba2d9ac937b7a4ee
sha1
a893d40f26115108f95ebe2ddf07debeab8ed7af
sha256
c25325843b2c339969c5fcf0029bb1659f82d23fc9c7cdba9134cafbab29c98b
sha512
0efbf7f04bbe73bf5f08f89c0d97284a7fd11e3cb72c57b3ae293434c59b8e6d78e845ff7faff31ee02fd86e106eeaa0dea9c3bc64c51de358091be0b667e359
ripemd-160
61b3d514fe39043a966f2b163961d2624d9ccf73
Diameter
42180322
Circumference
132513389.72125
Area
1.3973643619385E+15
Volume
3.929418582526E+22
Surface area
5.5894574477539E+15
Circumference
132513389.72125
Perimeter
84360644
Area
444794891005921
Diagonal
29825991.718832
Surface area
2668769346035526
Volume
9.3807958632923E+21
Space diagonal
36529230.391808
Perimeter
63270483
Area
1.9260183754233E+14
Altitude
18264615.195904
Surface area
1.9260183754233E+14
Volume
1.1055373946435E+21
Height
9941997.2396107