21492415 is an odd 8-digits composite number following 21492414
and preceding 21492416 . In scientific notation, it is written as 2.1492415 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 14699520 positive integers (up to 21492415) that are relatively prime to 21492415.
21492415 has 16 divisors, whose sum is 29551680
The reverse of 21492415 is 51429412
Previous prime number is 929
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million four hundred ninety-two thousand four hundred fifteen
Scientific notation
2.1492415 × 10^7
Engineering notation
2.1492415 × 10^6
Prime Factorization
5 × 7 × 929 × 661
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21492415
Product of the distinct prime numbers
The prime factorization of 21492415 is 5 × 7 × 929 × 661.
Since it has a total of 4 prime factors.
3 , 10 , 50 , 38 , 910 , 700 , 7890 , 3292 , 21480 , 52371 , 536569 , 28664 , 5035886 , 3779101 , 31766998 , 99280195 , 45434766 , 321585635 , 8356133099 , 2194385431
n×2
42984830
n×3
64477245
n×4
85969660
n×5
107462075
n÷2
10746207.5
n÷3
7164138.3333333
n÷3
5373103.75
n÷5
4298483
n2
461923902532225
n3
9.9278602116421E+21
n4
2.133736917306E+29
n5
4.5859159327561E+36
2 √n
4635.9912640125
3 √n
278.03218491129
4 √n
68.088113970153
5 √n
29.27231322127
1 , 5 , 7 , 35 , 661 , 929 , 3305 , 4627 , 4645 , 6503 , 23135 , 32515 , 614069 , 3070345 , 4298483 , 21492415
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21492414
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21492415 can be divided by 16 positive divisors.
The sum of these divisors (counting 21492415) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001111111001010111111
3
Ternary
1111102221001101
4
Quaternary
1101333022333
5
Quinary
21000224130
6
Senary
2044353531
8
Octal
121771277
10
Decimal
21492415
12
Duodecimal
72458a7
16
Hexadecimal
147f2bf
20
Vigesimal
6e6b0f
36
Base36
csnnj
md5
487f064783dfaf0cd2bb2cf0a7b8a74d
sha1
9c2ea8c8a1db0da238de268b24923301fc291108
sha256
947a38f79b01d39b5bc727f80207c282f9321ce3acc8c2013d35563930a5c7a4
sha512
46b6169d3506b590529bc5c768c0214f95c6f348518e2ea1b9a2a5618cc0162846de25968e6bbc461d75a319f71ae9b2cfcbcc2017be10a24011b886587ae0b1
ripemd-160
fe62b4d218ee6ee4ec3a1f530a25e22e538fd229
Diameter
42984830
Circumference
135040826.14381
Area
1.4511767387128E+15
Volume
4.1585723609015E+22
Surface area
5.8047069548511E+15
Circumference
135040826.14381
Perimeter
85969660
Area
461923902532225
Diagonal
30394864.781151
Surface area
2771543415193350
Volume
9.9278602116421E+21
Space diagonal
37225954.757355
Perimeter
64477245
Area
2.0001891710408E+14
Altitude
18612977.378678
Surface area
2.0001891710408E+14
Volume
1.1700095463874E+21
Height
10131621.593717