21471791 is an odd 8-digits composite number following 21471790
and preceding 21471792 . In scientific notation, it is written as 2.1471791 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 19393920 positive integers (up to 21471791) that are relatively prime to 21471791.
21471791 has 8 divisors, whose sum is 23574864
The reverse of 21471791 is 19717412
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million four hundred seventy-one thousand seven hundred ninety-one
Scientific notation
2.1471791 × 10^7
Engineering notation
2.1471791 × 10^6
Prime Factorization
11 × 157 × 12433
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21471791
Product of the distinct prime numbers
The prime factorization of 21471791 is 11 × 157 × 12433.
Since it has a total of 3 prime factors.
4 , 4 , 95 , 58 , 798 , 322 , 6993 , 4551 , 56128 , 57089 , 982479 , 918021 , 1604677 , 992814 , 17590678 , 31777864 , 964458888 , 549376993 , 7468871118 , 6614024937
n×2
42943582
n×3
64415373
n×4
85887164
n×5
107358955
n÷2
10735895.5
n÷3
7157263.6666667
n÷3
5367947.75
n÷5
4294358.2
n2
461037808747681
n3
9.8993074725282E+21
n4
2.1255586109486E+29
n5
4.5639550252539E+36
2 √n
4633.7663946298
3 √n
277.9432237451
4 √n
68.071773846652
5 √n
29.266693154386
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
-21471790
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 21471791 can be divided by 8 positive divisors.
The sum of these divisors (counting 21471791) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111010001000101111
3
Ternary
1111101212202112
4
Quaternary
1101322020233
5
Quinary
20444044131
6
Senary
2044114235
8
Octal
121721057
10
Decimal
21471791
12
Duodecimal
723597b
16
Hexadecimal
147a22f
20
Vigesimal
6e3j9b
36
Base36
cs7qn
md5
eda9e99b305660ecef598c2f59b1d54d
sha1
c3ad4f38ee6598ce4a92cee999f0e50010394160
sha256
16a23f17f07531cf38a80825902763a2843be1ee0d0e972905081f0aabaa69c5
sha512
edc0ca13c515af916207de279aeee544fb6e02758a74b6185dde8782bf938c81fa3f65b98dd8d77b57a1163726e443898a010a83d34da02be48725f3cbf5cce9
ripemd-160
7e7c3b98fb3d6ef247eda3ff4c6f85afaf199b9b
Diameter
42943582
Circumference
134911241.73003
Area
1.4483929929889E+15
Volume
4.1466122175095E+22
Surface area
5.7935719719554E+15
Circumference
134911241.73003
Perimeter
85887164
Area
461037808747681
Diagonal
30365698.040641
Surface area
2766226852486086
Volume
9.8993074725282E+21
Space diagonal
37190232.9415
Perimeter
64415373
Area
1.996352272403E+14
Altitude
18595116.47075
Surface area
1.996352272403E+14
Volume
1.1666445738126E+21
Height
10121899.34688