20921283 is an odd 8-digits composite number following 20921282
and preceding 20921284 . In scientific notation, it is written as 2.0921283 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 13250160 positive integers (up to 20921283) that are relatively prime to 20921283.
20921283 has 16 divisors, whose sum is 24422400
The reverse of 20921283 is 38212902
Previous prime number is 479
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million nine hundred twenty-one thousand two hundred eighty-three
Scientific notation
2.0921283 × 10^7
Engineering notation
2.0921283 × 10^6
Prime Factorization
9 × 23 × 479 × 211
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20921283
Product of the distinct prime numbers
The prime factorization of 20921283 is 9 × 23 × 479 × 211.
Since it has a total of 4 prime factors.
7 , 10 , 80 , 70 , 186 , 854 , 5546 , 1369 , 73055 , 98524 , 142357 , 217998 , 8751252 , 607057 , 52696383 , 17963385 , 20349329 , 504877514 , 3707542701 , 9120415356
n×2
41842566
n×3
62763849
n×4
83685132
n×5
104606415
n÷2
10460641.5
n÷3
6973761
n÷3
5230320.75
n÷5
4184256.6
n2
437700082366089
n3
9.1572472923043E+21
n4
1.9158136210328E+29
n5
4.0081278940882E+36
2 √n
4573.9789024437
3 √n
275.54726501124
4 √n
67.631197700793
5 √n
29.115058216706
1 , 9 , 23 , 207 , 211 , 479 , 1899 , 4311 , 4853 , 11017 , 43677 , 99153 , 101069 , 909621 , 2324587 , 20921283
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
-20921282
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 20921283 can be divided by 16 positive divisors.
The sum of these divisors (counting 20921283) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111110011101111000011
3
Ternary
1110100220121100
4
Quaternary
1033303233003
5
Quinary
20323440113
6
Senary
2024225443
8
Octal
117635703
10
Decimal
20921283
12
Duodecimal
700b283
16
Hexadecimal
13f3bc3
20
Vigesimal
6af343
36
Base36
cgeyr
md5
ca83a616d71793d53aa3eb2262d55c4d
sha1
3372dcb3496c8f0e5cb6e3761c9468c94c54db34
sha256
6a0585ebd3fde829ab0827714a81669f49a854c31f5b5995831aef59c19cca94
sha512
15b6ade19a4d05833b39f0ec056de32e3f1a4249475096e62641cb5983c9eafb329c375fc5aa8dd9ff42eda2862993cdec1efa5326fa6c2537edc251a86a3f2b
ripemd-160
0bbb4e0fda2654661e3bf42f3c198c8280f5e5f4
Diameter
41842566
Circumference
131452297.95295
Area
1.375075363237E+15
Volume
3.8357787760811E+22
Surface area
5.5003014529478E+15
Circumference
131452297.95295
Perimeter
83685132
Area
437700082366089
Diagonal
29587162.160846
Surface area
2626200494196534
Volume
9.1572472923043E+21
Space diagonal
36236725.115527
Perimeter
62763849
Area
1.8952969528379E+14
Altitude
18118362.557764
Surface area
1.8952969528379E+14
Volume
1.0791919428984E+21
Height
9862387.3869486