21492898 is an even 8-digits composite number following 21492897
and preceding 21492899 . In scientific notation, it is written as 2.1492898 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors.
There are 9094176 positive integers (up to 21492898) that are relatively prime to 21492898.
21492898 has 16 divisors, whose sum is 37313280
The reverse of 21492898 is 89829412
Previous prime number is 79
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-one million four hundred ninety-two thousand eight hundred ninety-eight
Scientific notation
2.1492898 × 10^7
Engineering notation
2.1492898 × 10^6
Prime Factorization
2 × 7 × 79 × 19433
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21492898
Product of the distinct prime numbers
The prime factorization of 21492898 is 2 × 7 × 79 × 19433.
Since it has a total of 4 prime factors.
9 , 5 , 68 , 19 , 869 , 162 , 9005 , 7069 , 24572 , 74072 , 289033 , 809644 , 8546255 , 6088761 , 33810177 , 6486843 , 603013542 , 172442869 , 6310166699 , 9906771430
n×2
42985796
n×3
64478694
n×4
85971592
n×5
107464490
n÷2
10746449
n÷3
7164299.3333333
n÷3
5373224.5
n÷5
4298579.6
n2
461944664438404
n3
9.9285295544188E+21
n4
2.1339287300311E+29
n5
4.5864312533828E+36
2 √n
4636.0433561389
3 √n
278.03426763891
4 √n
68.088496503734
5 √n
29.272444787687
1 , 2 , 7 , 14 , 79 , 158 , 553 , 1106 , 19433 , 38866 , 136031 , 272062 , 1535207 , 3070414 , 10746449 , 21492898
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
-21492897
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 21492898 can be divided by 16 positive divisors.
The sum of these divisors (counting 21492898) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001111111010010100010
3
Ternary
1111102221201021
4
Quaternary
1101333102202
5
Quinary
21000233043
6
Senary
2044400054
8
Octal
121772242
10
Decimal
21492898
12
Duodecimal
724602a
16
Hexadecimal
147f4a2
20
Vigesimal
6e6c4i
36
Base36
cso0y
md5
3f4688475e129270168ea6709777a668
sha1
d740d94150bcdba0ae2c072af22de13782973214
sha256
4bac67f13e2bfab481775ee7cbba218296ebeb2b1186b48cfcf28f9c00eff773
sha512
7652f56c1edcac9aae41b648d1ac8d83de7b03095412be787e1e58b3d18621e3d4d5827aa04fa866bd461526e859fbde4b76784313a1ba1fc857ccf656d89598
ripemd-160
d4c20143244751f48c59bcd10a0db204d9216f72
Diameter
42985796
Circumference
135043860.92231
Area
1.4512419641647E+15
Volume
4.1588527345482E+22
Surface area
5.8049678566588E+15
Circumference
135043860.92231
Perimeter
85971592
Area
461944664438404
Diagonal
30395547.846302
Surface area
2771667986630424
Volume
9.9285295544188E+21
Space diagonal
37226791.337896
Perimeter
64478694
Area
2.0002790727317E+14
Altitude
18613395.668948
Surface area
2.0002790727317E+14
Volume
1.1700884291901E+21
Height
10131849.282101