21490215 is an odd 8-digits composite number following 21490214
and preceding 21490216 . In scientific notation, it is written as 2.1490215 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 11461440 positive integers (up to 21490215) that are relatively prime to 21490215.
21490215 has 4 divisors, whose sum is 22922912
The reverse of 21490215 is 51209412
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million four hundred ninety thousand two hundred fifteen
Scientific notation
2.1490215 × 10^7
Engineering notation
2.1490215 × 10^6
Prime Factorization
15 × 1432681
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21490215
Product of the distinct prime numbers
The prime factorization of 21490215 is 15 × 1432681.
Since it has a total of 2 prime factors.
5 , 3 , 27 , 49 , 536 , 10 , 7689 , 1011 , 95913 , 4266 , 147215 , 319425 , 3362369 , 1204479 , 5611220 , 74900339 , 954772392 , 214608757 , 9126211786 , 6734191672
n×2
42980430
n×3
64470645
n×4
85960860
n×5
107451075
n÷2
10745107.5
n÷3
7163405
n÷3
5372553.75
n÷5
4298043
n2
461829340746225
n3
9.9248118259446E+21
n4
2.1328633997409E+29
n5
4.5835693026063E+36
2 √n
4635.7539839815
3 √n
278.02269797247
4 √n
68.086371499599
5 √n
29.271713924019
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
-21490214
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 21490215 can be divided by 4 positive divisors.
The sum of these divisors (counting 21490215) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111110101000100111
3
Ternary
1111102211000220
4
Quaternary
1101332220213
5
Quinary
21000141330
6
Senary
2044335423
8
Octal
121765047
10
Decimal
21490215
12
Duodecimal
7244573
16
Hexadecimal
147ea27
20
Vigesimal
6e65af
36
Base36
cslyf
md5
a1358a8e768b8d4f6068722b02e0d215
sha1
ff0d6d00cef1b96136657dbffa08a2ed8576ec4e
sha256
83675f90514086755f8fb0707021ecb17b1958e6f34790d78d66ff8bd27f9cc9
sha512
d3fadce189881e0f5629c7afe723558cc35848e5c9ec4d4f4fcee4707da536abeff7272dca06126f5709a0d27ad912a0a0e77a2a03b3fbfccb95818a599b1a2e
ripemd-160
f0d45cf6bfb19655ee47f6fcab315df627b20669
Diameter
42980430
Circumference
135027003.13613
Area
1.4508796641006E+15
Volume
4.1572954560865E+22
Surface area
5.8035186564022E+15
Circumference
135027003.13613
Perimeter
85960860
Area
461829340746225
Diagonal
30391753.511314
Surface area
2770976044477350
Volume
9.9248118259446E+21
Space diagonal
37222144.245579
Perimeter
64470645
Area
1.9997797064963E+14
Altitude
18611072.122789
Surface area
1.9997797064963E+14
Volume
1.1696502906876E+21
Height
10130584.503771