21897071 is an odd 8-digits composite number following 21897070
and preceding 21897072 . In scientific notation, it is written as 2.1897071 × 10^7.
The sum of its digits is 35. It has a total of 5 prime factors and 24 positive divisors.
There are 17418240 positive integers (up to 21897071) that are relatively prime to 21897071.
21897071 has 24 divisors, whose sum is 27349056
The reverse of 21897071 is 17079812
Previous prime number is 271
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million eight hundred ninety-seven thousand seventy-one
Scientific notation
2.1897071 × 10^7
Engineering notation
2.1897071 × 10^6
Prime Factorization
17 × 7 × 7 × 271 × 97
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
3128153
Product of the distinct prime numbers
The prime factorization of 21897071 is 17 × 7 × 7 × 271 × 97.
Since it has a total of 5 prime factors.
1 , 1 , 63 , 96 , 301 , 197 , 3082 , 1794 , 50521 , 52861 , 717517 , 257349 , 7438617 , 5659154 , 1434847 , 79612513 , 926955791 , 507702547 , 8285587976 , 9824101126
n×2
43794142
n×3
65691213
n×4
87588284
n×5
109485355
n÷2
10948535.5
n÷3
7299023.6666667
n÷3
5474267.75
n÷5
4379414.2
n2
479481718379041
n3
1.0499245230548E+22
n4
2.2990271825972E+29
n5
5.034196144826E+36
2 √n
4679.430627758
3 √n
279.76626327027
4 √n
68.406363941947
5 √n
29.381719296342
1 , 7 , 17 , 49 , 97 , 119 , 271 , 679 , 833 , 1649 , 1897 , 4607 , 4753 , 11543 , 13279 , 26287 , 32249 , 80801 , 184009 , 225743 , 446879 , 1288063 , 3128153 , 21897071
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21897070
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21897071 can be divided by 24 positive divisors.
The sum of these divisors (counting 21897071) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010011100001111101101111
3
Ternary
1112012111010122
4
Quaternary
1103201331233
5
Quinary
21101201241
6
Senary
2101155155
8
Octal
123417557
10
Decimal
21897071
12
Duodecimal
73bbabb
16
Hexadecimal
14e1f6f
20
Vigesimal
6gh2db
36
Base36
d1bvz
md5
3b2f463fd56138da73e652d0e31385e5
sha1
addf79bcad907d2996e03754cd9f876af70a93d4
sha256
495bf2aee8d66e025c800d36305c0421fdc2d75726f281dbccac8d8de7b6e102
sha512
4c924952eee8ff4b6e3a70587b55345f832852e0ca6bd35e6e14ab69480526b8a156afbf62467b93b71f5cac61f3933fe21a6863609febadf3de6ae7cb27ab7e
ripemd-160
c380adc9987f5307586a0c72f797754fe3744793
Diameter
43794142
Circumference
137583354.77747
Area
1.5063362439902E+15
Volume
4.3979135579369E+22
Surface area
6.0253449759608E+15
Circumference
137583354.77747
Perimeter
87588284
Area
479481718379041
Diagonal
30967134.784447
Surface area
2876890310274246
Volume
1.0499245230548E+22
Space diagonal
37926839.508943
Perimeter
65691213
Area
2.0762167438323E+14
Altitude
18963419.754472
Surface area
2.0762167438323E+14
Volume
1.2373479166435E+21
Height
10322378.261482