21697439 is an odd 8-digits prime number following 21697438
and preceding 21697440 . In scientific notation, it is written as 2.1697439 × 10^7.
The sum of its digits is 41. It has a total of 1 prime factors and 2 positive divisors.
There are 21697438 positive integers (up to 21697439) that are relatively prime to 21697439.
21697439 has 2 divisors, whose sum is 21697440
The reverse of 21697439 is 93479612
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million six hundred ninety-seven thousand four hundred thirty-nine
Scientific notation
2.1697439 × 10^7
Engineering notation
2.1697439 × 10^6
Prime Factorization
21697439
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21697439
Product of the distinct prime numbers
The prime factorization of 21697439 is 21697439.
Since it has a total of 1 prime factors.
8 , 10 , 54 , 72 , 870 , 623 , 5001 , 3610 , 57738 , 44909 , 280232 , 319909 , 6746278 , 7409685 , 25453969 , 46151858 , 414282422 , 347345250 , 7647182771 , 2327143697
n×2
43394878
n×3
65092317
n×4
86789756
n×5
108487195
n÷2
10848719.5
n÷3
7232479.6666667
n÷3
5424359.75
n÷5
4339487.8
n2
470778859158721
n3
1.0214695579086E+22
n4
2.2163273423079E+29
n5
4.8088627313757E+36
2 √n
4658.0509872692
3 √n
278.91347205182
4 √n
68.249915657598
5 √n
29.327949190023
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21697440
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10848720
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4658.0510946103
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999078232
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21697439 can be divided by 2 positive divisors.
The sum of these divisors (counting 21697439) is 21697440, the average is 10848720.
Base
System
Value
2
Binary
1010010110001001110011111
3
Ternary
1111211100021212
4
Quaternary
1102301032133
5
Quinary
21023304224
6
Senary
2053015035
8
Octal
122611637
10
Decimal
21697439
12
Duodecimal
732447b
16
Hexadecimal
14b139f
20
Vigesimal
6fc3bj
36
Base36
cx1un
md5
6c5d714f87cb2a116f991badada2a5d1
sha1
df6de6e0ad2bc3c243ba3aca09d00a03e1410ac5
sha256
57000457f08aad520ac2caaee852755d5ae41cfe316aef497b12b0b81415d028
sha512
490c02f911c9308b0dc0fbd26e89d78664b2db6f1eb4da3e231257b289abf1e0fce3bc1bc53faa350d3fd2c1d6596dd70facbac806cdbab2cb6c4eef5baf7231
ripemd-160
fc7f47c86c35e5ab8394f7967974b9b98aec8091
Diameter
43394878
Circumference
136329029.92823
Area
1.4789954053984E+15
Volume
4.278721678655E+22
Surface area
5.9159816215937E+15
Circumference
136329029.92823
Perimeter
86789756
Area
470778859158721
Diagonal
30684812.502563
Surface area
2824673154952326
Volume
1.0214695579086E+22
Space diagonal
37581066.742126
Perimeter
65092317
Area
2.0385322579805E+14
Altitude
18790533.371063
Surface area
2.0385322579805E+14
Volume
1.2038134186213E+21
Height
10228270.834188