20921613 is an odd 8-digits composite number following 20921612
and preceding 20921614 . In scientific notation, it is written as 2.0921613 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13570704 positive integers (up to 20921613) that are relatively prime to 20921613.
20921613 has 8 divisors, whose sum is 28649568
The reverse of 20921613 is 31612902
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million nine hundred twenty-one thousand six hundred thirteen
Scientific notation
2.0921613 × 10^7
Engineering notation
2.0921613 × 10^6
Prime Factorization
3 × 37 × 188483
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20921613
Product of the distinct prime numbers
The prime factorization of 20921613 is 3 × 37 × 188483.
Since it has a total of 3 prime factors.
5 , 3 , 94 , 16 , 201 , 312 , 8787 , 2777 , 77682 , 19032 , 539829 , 466726 , 3890980 , 2808196 , 12090462 , 18677731 , 105403663 , 803679376 , 4523607353 , 2727824961
n×2
41843226
n×3
62764839
n×4
83686452
n×5
104608065
n÷2
10460806.5
n÷3
6973871
n÷3
5230403.25
n÷5
4184322.6
n2
437713890521769
n3
9.1576806222208E+21
n4
1.915934499557E+29
n5
4.0084440133081E+36
2 √n
4574.0149759265
3 √n
275.54871377707
4 √n
67.631464392888
5 √n
29.115150064883
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921612
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921613 can be divided by 8 positive divisors.
The sum of these divisors (counting 20921613) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110011110100001101
3
Ternary
1110100221001120
4
Quaternary
1033303310031
5
Quinary
20323442423
6
Senary
2024231153
8
Octal
117636415
10
Decimal
20921613
12
Duodecimal
700b4b9
16
Hexadecimal
13f3d0d
20
Vigesimal
6af40d
36
Base36
cgf7x
md5
30005285a6d5c60c5c4f35923d497654
sha1
1cdfcd0cb1b5e9cffd117c7c347979dfe27e747b
sha256
653dc91511efb30a6d2a4964f802149cfa128c2a33f251587cf7ed1d70429027
sha512
961eb65629b672a73b711deeddd3e18b582aa3aa9d5b7a24e9793721134365d6da85f85ed27ee01f4a4d10efe7f9763b489ed9fb7adb1a37ee2fb6eabf808665
ripemd-160
10a7553a3bb0783b89a92dcde1f078e5aa5569ab
Diameter
41843226
Circumference
131454371.4041
Area
1.3751187428374E+15
Volume
3.8359602888921E+22
Surface area
5.5004749713496E+15
Circumference
131454371.4041
Perimeter
83686452
Area
437713890521769
Diagonal
29587628.851321
Surface area
2626283343130614
Volume
9.1576806222208E+21
Space diagonal
36237296.692294
Perimeter
62764839
Area
1.8953567439059E+14
Altitude
18118648.346147
Surface area
1.8953567439059E+14
Volume
1.0792430113188E+21
Height
9862542.9504404