20921279 is an odd 8-digits composite number following 20921278
and preceding 20921280 . In scientific notation, it is written as 2.0921279 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 20879184 positive integers (up to 20921279) that are relatively prime to 20921279.
20921279 has 4 divisors, whose sum is 20963376
The reverse of 20921279 is 97212902
Previous prime number is 503
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million nine hundred twenty-one thousand two hundred seventy-nine
Scientific notation
2.0921279 × 10^7
Engineering notation
2.0921279 × 10^6
Prime Factorization
503 × 41593
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20921279
Product of the distinct prime numbers
The prime factorization of 20921279 is 503 × 41593.
Since it has a total of 2 prime factors.
6 , 3 , 40 , 12 , 94 , 695 , 8786 , 8220 , 990 , 98011 , 54164 , 220105 , 526330 , 6127881 , 20637353 , 34137830 , 194505640 , 223695472 , 5642030830 , 6881017476
n×2
41842558
n×3
62763837
n×4
83685116
n×5
104606395
n÷2
10460639.5
n÷3
6973759.6666667
n÷3
5230319.75
n÷5
4184255.8
n2
437699914995841
n3
9.1572420399043E+21
n4
1.9158121558737E+29
n5
4.0081240624624E+36
2 √n
4573.9784651876
3 √n
275.54724745035
4 √n
67.631194468142
5 √n
29.115057103387
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
-20921278
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 20921279 can be divided by 4 positive divisors.
The sum of these divisors (counting 20921279) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110011101110111111
3
Ternary
1110100220121012
4
Quaternary
1033303232333
5
Quinary
20323440104
6
Senary
2024225435
8
Octal
117635677
10
Decimal
20921279
12
Duodecimal
700b27b
16
Hexadecimal
13f3bbf
20
Vigesimal
6af33j
36
Base36
cgeyn
md5
36659267143e41a2f6917f3b93bd1b37
sha1
1eeb596e111d52fad5677c0a178706847aa32257
sha256
26032f802bff4556f14a15671abe80f566e41aa26202a35e0582cabe491e5039
sha512
861baab0e9233f766bcf82418a300b1fc0c8648cb23a67b891fcb3103ff72a8e5b287efcd305b99acb616b27915c5f159c4172c641d8f21feb7a62adc15e411f
ripemd-160
4ccbb6c113ff59ffee3b02f115cc094b4039f4b4
Diameter
41842558
Circumference
131452272.8202
Area
1.3750748374278E+15
Volume
3.8357765759609E+22
Surface area
5.5002993497112E+15
Circumference
131452272.8202
Perimeter
83685116
Area
437699914995841
Diagonal
29587156.503991
Surface area
2626199489975046
Volume
9.1572420399043E+21
Space diagonal
36236718.187324
Perimeter
62763837
Area
1.8952962281034E+14
Altitude
18118359.093662
Surface area
1.8952962281034E+14
Volume
1.0791913238971E+21
Height
9862385.5013305