21231485 is an odd 8-digits composite number following 21231484
and preceding 21231486 . In scientific notation, it is written as 2.1231485 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 15220800 positive integers (up to 21231485) that are relatively prime to 21231485.
21231485 has 16 divisors, whose sum is 28190592
The reverse of 21231485 is 58413212
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million two hundred thirty-one thousand four hundred eighty-five
Scientific notation
2.1231485 × 10^7
Engineering notation
2.1231485 × 10^6
Prime Factorization
5 × 11 × 71 × 5437
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21231485
Product of the distinct prime numbers
The prime factorization of 21231485 is 5 × 11 × 71 × 5437.
Since it has a total of 4 prime factors.
8 , 8 , 82 , 77 , 177 , 992 , 8642 , 6972 , 17315 , 68506 , 811925 , 867098 , 4389913 , 550622 , 13067629 , 86463970 , 982436038 , 874312592 , 7802206218 , 6713335684
n×2
42462970
n×3
63694455
n×4
84925940
n×5
106157425
n÷2
10615742.5
n÷3
7077161.6666667
n÷3
5307871.25
n÷5
4246297
n2
450775955305225
n3
9.5706429334236E+21
n4
2.0319896188134E+29
n5
4.3142157111992E+36
2 √n
4607.763557302
3 √n
276.90244493524
4 √n
67.880509406618
5 √n
29.200889054538
1 , 5 , 11 , 55 , 71 , 355 , 781 , 3905 , 5437 , 27185 , 59807 , 299035 , 386027 , 1930135 , 4246297 , 21231485
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
-21231484
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 21231485 can be divided by 16 positive divisors.
The sum of these divisors (counting 21231485) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000111111011101111101
3
Ternary
1110221200010022
4
Quaternary
1100333131331
5
Quinary
20413401420
6
Senary
2035021525
8
Octal
120773575
10
Decimal
21231485
12
Duodecimal
713a8a5
16
Hexadecimal
143f77d
20
Vigesimal
6cdie5
36
Base36
cn2bh
md5
037a5b86ccd8e40902aba0b5fe2b7c77
sha1
0957d615a4aa21c5f8b0c9b15ccf8b56694d2436
sha256
488b9768de2f78308ce718b6f10b1cc92bd8b25c202c2f1041534ccb55cc3040
sha512
35ef08ec57804e8de4b77f88518825ea3862e380c2e2fe91c85598c6b1dd72aea98dca311aad975429a5ddd1b4a38ee2e0a070daf17c8f27ad36119531fdfdd9
ripemd-160
c2e0fba7227384a8de40cd011c356f26343377c2
Diameter
42462970
Circumference
133401354.6016
Area
1.4161544296018E+15
Volume
4.0089415373033E+22
Surface area
5.6646177184073E+15
Circumference
133401354.6016
Perimeter
84925940
Area
450775955305225
Diagonal
30025854.036321
Surface area
2704655731831350
Volume
9.5706429334236E+21
Space diagonal
36774010.740137
Perimeter
63694455
Area
1.9519171435476E+14
Altitude
18387005.370068
Surface area
1.9519171435476E+14
Volume
1.1279110864232E+21
Height
10008618.012107