20921966 is an even 8-digits composite number following 20921965
and preceding 20921967 . In scientific notation, it is written as 2.0921966 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 9634464 positive integers (up to 20921966) that are relatively prime to 20921966.
20921966 has 16 divisors, whose sum is 33873504
The reverse of 20921966 is 66912902
Previous prime number is 1063
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million nine hundred twenty-one thousand nine hundred sixty-six
Scientific notation
2.0921966 × 10^7
Engineering notation
2.0921966 × 10^6
Prime Factorization
2 × 13 × 1063 × 757
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20921966
Product of the distinct prime numbers
The prime factorization of 20921966 is 2 × 13 × 1063 × 757.
Since it has a total of 4 prime factors.
9 , 8 , 38 , 93 , 576 , 249 , 8555 , 8753 , 78058 , 32383 , 643237 , 328591 , 1209506 , 2000157 , 18382202 , 88556711 , 241201248 , 881866828 , 6956311730 , 9189984807
n×2
41843932
n×3
62765898
n×4
83687864
n×5
104609830
n÷2
10460983
n÷3
6973988.6666667
n÷3
5230491.5
n÷5
4184393.2
n2
437728661305156
n3
9.158144169052E+21
n4
1.91606380928E+29
n5
4.0087821871587E+36
2 √n
4574.0535633068
3 √n
275.55026350061
4 √n
67.631749669122
5 √n
29.115248313318
1 , 2 , 13 , 26 , 757 , 1063 , 1514 , 2126 , 9841 , 13819 , 19682 , 27638 , 804691 , 1609382 , 10460983 , 20921966
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
-20921965
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 20921966 can be divided by 16 positive divisors.
The sum of these divisors (counting 20921966) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111110011111001101110
3
Ternary
1110100221112122
4
Quaternary
1033303321232
5
Quinary
20324000331
6
Senary
2024232542
8
Octal
117637156
10
Decimal
20921966
12
Duodecimal
700b752
16
Hexadecimal
13f3e6e
20
Vigesimal
6af4i6
36
Base36
cgfhq
md5
db202caada393ced666dfe46307af87b
sha1
e2d8fd2103edfea8815a6ac193300dc6ca9d81d2
sha256
d509379eb8c958aa83bbd6082f08a5b2185f0d5b470dfb1e4374380d998a55d9
sha512
baac93b9342383ab731ff33e4a0edaf497660fda160f0a7f761b7bfb7ea07f4eafa9106b992d997bd9b6351454918740ade14a33387270828d9f263c77dbbc5d
ripemd-160
3f39331f2a1e5ebdda227fbc3f115a7ad5bd6418
Diameter
41843932
Circumference
131456589.36851
Area
1.375165146622E+15
Volume
3.8361544589347E+22
Surface area
5.5006605864879E+15
Circumference
131456589.36851
Perimeter
83687864
Area
437728661305156
Diagonal
29588128.068709
Surface area
2626371967830936
Volume
9.158144169052E+21
Space diagonal
36237908.106229
Perimeter
62765898
Area
1.8954207032741E+14
Altitude
18118954.053114
Surface area
1.8954207032741E+14
Volume
1.0792976408368E+21
Height
9862709.3562363