20921161 is an odd 8-digits prime number following 20921160
and preceding 20921162 . In scientific notation, it is written as 2.0921161 × 10^7.
The sum of its digits is 22. It has a total of 1 prime factors and 2 positive divisors.
There are 20921160 positive integers (up to 20921161) that are relatively prime to 20921161.
20921161 has 2 divisors, whose sum is 20921162
The reverse of 20921161 is 16112902
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million nine hundred twenty-one thousand one hundred sixty-one
Scientific notation
2.0921161 × 10^7
Engineering notation
2.0921161 × 10^6
Prime Factorization
20921161
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20921161
Product of the distinct prime numbers
The prime factorization of 20921161 is 20921161.
Since it has a total of 1 prime factors.
9 , 8 , 63 , 75 , 753 , 686 , 9220 , 2648 , 7763 , 96420 , 647764 , 330008 , 4011058 , 6173780 , 86043569 , 44833207 , 43623190 , 630604560 , 4158706523 , 7289944449
n×2
41842322
n×3
62763483
n×4
83684644
n×5
104605805
n÷2
10460580.5
n÷3
6973720.3333333
n÷3
5230290.25
n÷5
4184232.2
n2
437694977587921
n3
9.1570870950083E+21
n4
1.9157689340569E+29
n5
4.0080110308203E+36
2 √n
4573.9655661144
3 √n
275.54672940305
4 √n
67.631099104734
5 √n
29.115024260419
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20921162
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10460581
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4573.9656754287
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999904403
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921161 can be divided by 2 positive divisors.
The sum of these divisors (counting 20921161) is 20921162, the average is 10460581.
Base
System
Value
2
Binary
1001111110011101101001001
3
Ternary
1110100220102211
4
Quaternary
1033303231021
5
Quinary
20323434121
6
Senary
2024225121
8
Octal
117635511
10
Decimal
20921161
12
Duodecimal
700b1a1
16
Hexadecimal
13f3b49
20
Vigesimal
6af2i1
36
Base36
cgevd
md5
b7cf0842b821e6ffcaf0a928c56e61e2
sha1
1ab1026da97204178dd7058098a415ada77802ec
sha256
760b8be5c9cf9f70bbe3ca280f114bcfbbbf34110abcc5191e618afd3d3e3587
sha512
4bb8d05b7f6716d31c38f436ea60b8bcbeeee247d4774dfb94ea9305e572da65a3931007675fe99e76e2f45d484dd52b6d7accb2637475d77e07da5c3c94eb7a
ripemd-160
85ddb2ae92912b7edbdfa86798baa61d228d566f
Diameter
41842322
Circumference
131451531.40434
Area
1.3750593261034E+15
Volume
3.8357116727947E+22
Surface area
5.5002373044134E+15
Circumference
131451531.40434
Perimeter
83684644
Area
437694977587921
Diagonal
29586989.626791
Surface area
2626169865527526
Volume
9.1570870950083E+21
Space diagonal
36236513.805328
Perimeter
62763483
Area
1.8952748485E+14
Altitude
18118256.902664
Surface area
1.8952748485E+14
Volume
1.079173063466E+21
Height
9862329.875597