21497515 is an odd 8-digits composite number following 21497514
and preceding 21497516 . In scientific notation, it is written as 2.1497515 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 15875040 positive integers (up to 21497515) that are relatively prime to 21497515.
21497515 has 8 divisors, whose sum is 27781488
The reverse of 21497515 is 51579412
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million four hundred ninety-seven thousand five hundred fifteen
Scientific notation
2.1497515 × 10^7
Engineering notation
2.1497515 × 10^6
Prime Factorization
5 × 13 × 330731
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21497515
Product of the distinct prime numbers
The prime factorization of 21497515 is 5 × 13 × 330731.
Since it has a total of 3 prime factors.
10 , 8 , 63 , 21 , 271 , 330 , 3468 , 2812 , 76977 , 744 , 723816 , 704393 , 8007753 , 8432549 , 38409833 , 35612899 , 392064306 , 39695559 , 9509523094 , 5218918590
n×2
42995030
n×3
64492545
n×4
85990060
n×5
107487575
n÷2
10748757.5
n÷3
7165838.3333333
n÷3
5374378.75
n÷5
4299503
n2
462143151175225
n3
9.9349293245367E+21
n4
2.1357629217817E+29
n5
4.5913595447445E+36
2 √n
4636.5412755631
3 √n
278.0541748707
4 √n
68.092152819272
5 √n
29.273702312532
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
-21497514
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 21497515 can be divided by 8 positive divisors.
The sum of these divisors (counting 21497515) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000000011010101011
3
Ternary
1111110012001021
4
Quaternary
1102000122223
5
Quinary
21000410030
6
Senary
2044433311
8
Octal
122003253
10
Decimal
21497515
12
Duodecimal
7248837
16
Hexadecimal
14806ab
20
Vigesimal
6e73ff
36
Base36
csrl7
md5
50d9c8de1f4c28cc961af8711847068d
sha1
6e719878c08e3089340d499c33317dbe2f1920a6
sha256
951de7db0469328eed9116e935a1efb39e7fa56de4d40909c8534fb1de9a4c69
sha512
2b23197ad7266d49428edec0adf0722682633c05fe0513cab519a59b56f073576c065146c0732ea7c6a1a2e16b0c24b31f9dc304677f4a187726c7c25d177e78
ripemd-160
c9d8e2e49d80412060a79b5ea095fa11ef91ac5f
Diameter
42995030
Circumference
135072870.38887
Area
1.4518655286389E+15
Volume
4.1615334639864E+22
Surface area
5.8074621145557E+15
Circumference
135072870.38887
Perimeter
85990060
Area
462143151175225
Diagonal
30402077.270319
Surface area
2772858907051350
Volume
9.9349293245367E+21
Space diagonal
37234788.216474
Perimeter
64492545
Area
2.0011385455137E+14
Altitude
18617394.108237
Surface area
2.0011385455137E+14
Volume
1.1708426493315E+21
Height
10134025.756773