20921929 is an odd 8-digits composite number following 20921928
and preceding 20921930 . In scientific notation, it is written as 2.0921929 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 17933076 positive integers (up to 20921929) that are relatively prime to 20921929.
20921929 has 4 divisors, whose sum is 23910784
The reverse of 20921929 is 92912902
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million nine hundred twenty-one thousand nine hundred twenty-nine
Scientific notation
2.0921929 × 10^7
Engineering notation
2.0921929 × 10^6
Prime Factorization
7 × 2988847
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20921929
Product of the distinct prime numbers
The prime factorization of 20921929 is 7 × 2988847.
Since it has a total of 2 prime factors.
3 , 1 , 68 , 94 , 443 , 592 , 4839 , 9352 , 69859 , 64237 , 162504 , 76256 , 1236053 , 7038890 , 91755568 , 22973669 , 949111961 , 981708288 , 9092120411 , 1314081086
n×2
41843858
n×3
62765787
n×4
83687716
n×5
104609645
n÷2
10460964.5
n÷3
6973976.3333333
n÷3
5230482.25
n÷5
4184385.8
n2
437727113081041
n3
9.1580955812565E+21
n4
1.9160502552626E+29
n5
4.0087467401037E+36
2 √n
4574.0495187525
3 √n
275.55010106582
4 √n
67.631719767817
5 √n
29.115238015385
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
-20921928
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 20921929 can be divided by 4 positive divisors.
The sum of these divisors (counting 20921929) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110011111001001001
3
Ternary
1110100221111021
4
Quaternary
1033303321021
5
Quinary
20324000204
6
Senary
2024232441
8
Octal
117637111
10
Decimal
20921929
12
Duodecimal
700b721
16
Hexadecimal
13f3e49
20
Vigesimal
6af4g9
36
Base36
cgfgp
md5
813ff566074118be0aa86eef8a75928e
sha1
ebf72cd0ad2521c604db1c17f179b9943f9d4787
sha256
70aa02c065bce08cfc9a0e6b44e2598af80b3536bb65fb2086df2826a2c48900
sha512
10d12a479196eb2da61e90543a90701607bc121e62a140a1b363ab81bb7eb2044f343f5ef1c73a7a507acde1795d4effd1d84572decb3bf676fdf2ba6be41d70
ripemd-160
3d72d1ea1cc6a0395015faafc862479ba463cdd8
Diameter
41843858
Circumference
131456356.89065
Area
1.3751602827325E+15
Volume
3.8361341065265E+22
Surface area
5.5006411309299E+15
Circumference
131456356.89065
Perimeter
83687716
Area
437727113081041
Diagonal
29588075.742807
Surface area
2626362678486246
Volume
9.1580955812565E+21
Space diagonal
36237844.020349
Perimeter
62765787
Area
1.895413999267E+14
Altitude
18118922.010174
Surface area
1.895413999267E+14
Volume
1.0792919147102E+21
Height
9862691.914269