21479897 is an odd 8-digits composite number following 21479896
and preceding 21479898 . In scientific notation, it is written as 2.1479897 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 21469056 positive integers (up to 21479897) that are relatively prime to 21479897.
21479897 has 4 divisors, whose sum is 21490740
The reverse of 21479897 is 79897412
Previous prime number is 2609
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-one million four hundred seventy-nine thousand eight hundred ninety-seven
Scientific notation
2.1479897 × 10^7
Engineering notation
2.1479897 × 10^6
Prime Factorization
2609 × 8233
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21479897
Product of the distinct prime numbers
The prime factorization of 21479897 is 2609 × 8233.
Since it has a total of 2 prime factors.
8 , 3 , 67 , 37 , 340 , 1 , 2993 , 3662 , 81530 , 85442 , 216212 , 794401 , 8682960 , 7816678 , 65907116 , 75416108 , 942188219 , 185105694 , 1857803305 , 3017256205
n×2
42959794
n×3
64439691
n×4
85919588
n×5
107399485
n÷2
10739948.5
n÷3
7159965.6666667
n÷3
5369974.25
n÷5
4295979.4
n2
461385975130609
n3
9.91052322305E+21
n4
2.1287701804722E+29
n5
4.5725764213215E+36
2 √n
4634.6409785441
3 √n
277.97819558813
4 √n
68.078197527138
5 √n
29.268902564849
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
-21479896
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 21479897 can be divided by 4 positive divisors.
The sum of these divisors (counting 21479897) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111100000111011001
3
Ternary
1111102021212202
4
Quaternary
1101330013121
5
Quinary
20444324042
6
Senary
2044215545
8
Octal
121740731
10
Decimal
21479897
12
Duodecimal
723a5b5
16
Hexadecimal
147c1d9
20
Vigesimal
6e4jeh
36
Base36
csdzt
md5
b63a644a55a7be39e7883e20070db9af
sha1
7b2f67d22e60bdb0f2ed161a1fa86d775f82c4b8
sha256
121fde833f2a49f75b405443e10c3e8ea97b9990d907a2d833f87763eca2c9ec
sha512
4b264fc836f1283a67e20ddd3d3c49bc3fd9cf6a70fbc031d79fc5a478e7a4f9e6aacaafca13bebc97918bc32a5ad9ebe7a4f217e4299356c29b64c5f0149e24
ripemd-160
a00fbbe2f949c3c8fbce61dd6b9b96496ab70153
Diameter
42959794
Circumference
134962173.23013
Area
1.4494867899397E+15
Volume
4.151310260102E+22
Surface area
5.7979471597587E+15
Circumference
134962173.23013
Perimeter
85919588
Area
461385975130609
Diagonal
30377161.655777
Surface area
2768315850783654
Volume
9.91052322305E+21
Space diagonal
37204272.945346
Perimeter
64439691
Area
1.9978598770648E+14
Altitude
18602136.472673
Surface area
1.9978598770648E+14
Volume
1.1679663626876E+21
Height
10125720.551926