21579897 is an odd 8-digits composite number following 21579896
and preceding 21579898 . In scientific notation, it is written as 2.1579897 × 10^7.
The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors.
There are 14386596 positive integers (up to 21579897) that are relatively prime to 21579897.
21579897 has 4 divisors, whose sum is 28773200
The reverse of 21579897 is 79897512
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
twenty-one million five hundred seventy-nine thousand eight hundred ninety-seven
Scientific notation
2.1579897 × 10^7
Engineering notation
2.1579897 × 10^6
Prime Factorization
3 × 7193299
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21579897
Product of the distinct prime numbers
The prime factorization of 21579897 is 3 × 7193299.
Since it has a total of 2 prime factors.
5 , 3 , 50 , 12 , 556 , 851 , 976 , 4546 , 3146 , 95645 , 130691 , 295251 , 7817994 , 68274 , 79496463 , 32786655 , 213208172 , 45616638 , 1016525478 , 167587399
n×2
43159794
n×3
64739691
n×4
86319588
n×5
107899485
n÷2
10789948.5
n÷3
7193299
n÷3
5394974.25
n÷5
4315979.4
n2
465691954530609
n3
1.0049584412499E+22
n4
2.1686899651454E+29
n5
4.6800106072771E+36
2 √n
4645.4167735522
3 √n
278.4089051807
4 √n
68.157294353225
5 √n
29.296104324321
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
-21579896
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 21579897 can be divided by 4 positive divisors.
The sum of these divisors (counting 21579897) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010010100100001111001
3
Ternary
1111121101001110
4
Quaternary
1102110201321
5
Quinary
21011024042
6
Senary
2050310533
8
Octal
122244171
10
Decimal
21579897
12
Duodecimal
7288449
16
Hexadecimal
1494879
20
Vigesimal
6eh9eh
36
Base36
cuj5l
md5
a259f0b71a9878aa82eeb972bfebe0b0
sha1
17aa0d89d7c34accdcf40fe982c521f48da51ecd
sha256
0d77e73b41a54e5901608cee271c2fee2a51687677c4d3ee4bceeb4ffd75f39f
sha512
dc4f7bf8d11d0923df7261d5cc57a5f14a5d8c7fce02234afe324cbaabbbc736d20132f382e9b3308d3af57dbe9f4da2f2ed16768ffb8f1ec152e0c356ccea69
ripemd-160
91922245fed60409e46f608ae15ad962226e661e
Diameter
43159794
Circumference
135590491.76085
Area
1.4630144231892E+15
Volume
4.2095600749251E+22
Surface area
5.8520576927569E+15
Circumference
135590491.76085
Perimeter
86319588
Area
465691954530609
Diagonal
30518583.012014
Surface area
2794151727183654
Volume
1.0049584412499E+22
Space diagonal
37377478.026103
Perimeter
64739691
Area
2.0165053148077E+14
Altitude
18688739.013052
Surface area
2.0165053148077E+14
Volume
1.1843548810308E+21
Height
10172861.004005