20921349 is an odd 8-digits composite number following 20921348
and preceding 20921350 . In scientific notation, it is written as 2.0921349 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 13523328 positive integers (up to 20921349) that are relatively prime to 20921349.
20921349 has 16 divisors, whose sum is 28753472
The reverse of 20921349 is 94312902
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million nine hundred twenty-one thousand three hundred forty-nine
Scientific notation
2.0921349 × 10^7
Engineering notation
2.0921349 × 10^6
Prime Factorization
3 × 157 × 43 × 1033
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20921349
Product of the distinct prime numbers
The prime factorization of 20921349 is 3 × 157 × 43 × 1033.
Since it has a total of 4 prime factors.
1 , 7 , 14 , 14 , 440 , 8 , 4145 , 805 , 31321 , 98493 , 53734 , 231574 , 2028159 , 4606357 , 66002023 , 97433580 , 228112123 , 813814208 , 5625576356 , 779664974
n×2
41842698
n×3
62764047
n×4
83685396
n×5
104606745
n÷2
10460674.5
n÷3
6973783
n÷3
5230337.25
n÷5
4184269.8
n2
437702843979801
n3
9.157333957194E+21
n4
1.9158377962801E+29
n5
4.0081911163366E+36
2 √n
4573.986117163
3 √n
275.54755476563
4 √n
67.631251039464
5 √n
29.115076586434
1 , 3 , 43 , 129 , 157 , 471 , 1033 , 3099 , 6751 , 20253 , 44419 , 133257 , 162181 , 486543 , 6973783 , 20921349
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921348
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921349 can be divided by 16 positive divisors.
The sum of these divisors (counting 20921349) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111110011110000000101
3
Ternary
1110100220200210
4
Quaternary
1033303300011
5
Quinary
20323440344
6
Senary
2024230033
8
Octal
117636005
10
Decimal
20921349
12
Duodecimal
700b319
16
Hexadecimal
13f3c05
20
Vigesimal
6af379
36
Base36
cgf0l
md5
d7c25426d08caafb84c36bb19f1dcb0f
sha1
fe198ab6e07fd6e4f99359163ef067f507a23cab
sha256
75f7b6e5c9a6879ba9395f397c600f08ee0bd6092bba35ebe662dd9c9ed4c46a
sha512
1dbc0754db9571e1ff5f158adaa982cd0c8a782ec610dc96568ae0e3b0b774af44a4ea50b7c884dda0ba6e70702170d0da90901a21677507484562a00f58bece
ripemd-160
3900cb81df117183ca5f647cb9418b364b6830b6
Diameter
41842698
Circumference
131452712.64318
Area
1.3750840391023E+15
Volume
3.8358150781852E+22
Surface area
5.5003361564092E+15
Circumference
131452712.64318
Perimeter
83685396
Area
437702843979801
Diagonal
29587255.498941
Surface area
2626217063878806
Volume
9.157333957194E+21
Space diagonal
36236839.43088
Perimeter
62764047
Area
1.895308910976E+14
Altitude
18118419.71544
Surface area
1.895308910976E+14
Volume
1.0792021564536E+21
Height
9862418.4996469