21497771 is an odd 8-digits composite number following 21497770
and preceding 21497772 . In scientific notation, it is written as 2.1497771 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 21015720 positive integers (up to 21497771) that are relatively prime to 21497771.
21497771 has 8 divisors, whose sum is 21984000
The reverse of 21497771 is 17779412
Previous prime number is 199
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million four hundred ninety-seven thousand seven hundred seventy-one
Scientific notation
2.1497771 × 10^7
Engineering notation
2.1497771 × 10^6
Prime Factorization
59 × 199 × 1831
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21497771
Product of the distinct prime numbers
The prime factorization of 21497771 is 59 × 199 × 1831.
Since it has a total of 3 prime factors.
5 , 2 , 68 , 53 , 224 , 735 , 3692 , 448 , 13576 , 49815 , 800427 , 465197 , 2806106 , 5422143 , 23959880 , 23124292 , 222431181 , 998874606 , 3675392887 , 4635099686
n×2
42995542
n×3
64493313
n×4
85991084
n×5
107488855
n÷2
10748885.5
n÷3
7165923.6666667
n÷3
5374442.75
n÷5
4299554.2
n2
462154157968441
n3
9.9352842547034E+21
n4
2.1358646572752E+29
n5
4.5916329289095E+36
2 √n
4636.5688822663
3 √n
278.05527858875
4 √n
68.092355534717
5 √n
29.273772032516
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21497770
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21497771 can be divided by 8 positive divisors.
The sum of these divisors (counting 21497771) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000000011110101011
3
Ternary
1111110012101202
4
Quaternary
1102000132223
5
Quinary
21000412041
6
Senary
2044434415
8
Octal
122003653
10
Decimal
21497771
12
Duodecimal
7248a0b
16
Hexadecimal
14807ab
20
Vigesimal
6e748b
36
Base36
csrsb
md5
034c8a80da9c2b3af3e28731d0f4db64
sha1
f7506e56851f97a4659b83fe45ccf7a3b55d9efd
sha256
edb5daf4c7e27c5b55eb9bee7970bbc052af728b9b96584b50733551f7e428ae
sha512
014794d6fe1e1d707da4ac1eb5b897988efc91ae80e3e43efd0fff9eb23656838530f3f5c176d01895d5b1b1aa8365355f0d019ffd947e316e1bbc38c0ec1795
ripemd-160
d08d810df0479533e0230775a97279c7d15ea1f3
Diameter
42995542
Circumference
135074478.88431
Area
1.4519001074996E+15
Volume
4.161682136787E+22
Surface area
5.8076004299985E+15
Circumference
135074478.88431
Perimeter
85991084
Area
462154157968441
Diagonal
30402439.308991
Surface area
2772924947810646
Volume
9.9352842547034E+21
Space diagonal
37235231.621481
Perimeter
64493313
Area
2.0011862063264E+14
Altitude
18617615.81074
Surface area
2.0011862063264E+14
Volume
1.1708844782528E+21
Height
10134146.43633