21492087 is an odd 8-digits composite number following 21492086
and preceding 21492088 . In scientific notation, it is written as 2.1492087 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 14328056 positive integers (up to 21492087) that are relatively prime to 21492087.
21492087 has 4 divisors, whose sum is 28656120
The reverse of 21492087 is 78029412
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million four hundred ninety-two thousand eighty-seven
Scientific notation
2.1492087 × 10^7
Engineering notation
2.1492087 × 10^6
Prime Factorization
3 × 7164029
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21492087
Product of the distinct prime numbers
The prime factorization of 21492087 is 3 × 7164029.
Since it has a total of 2 prime factors.
3 , 8 , 15 , 86 , 678 , 472 , 6307 , 6047 , 57157 , 80422 , 741738 , 271212 , 1121462 , 2810331 , 66858609 , 79769774 , 115216306 , 686088353 , 1154283654 , 5469120461
n×2
42984174
n×3
64476261
n×4
85968348
n×5
107460435
n÷2
10746043.5
n÷3
7164029
n÷3
5373021.75
n÷5
4298417.4
n2
461909803615569
n3
9.9274056854587E+21
n4
2.1336066667617E+29
n5
4.5855660105823E+36
2 √n
4635.9558884873
3 √n
278.03077053602
4 √n
68.087854192119
5 √n
29.272223874611
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
-21492086
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 21492087 can be divided by 4 positive divisors.
The sum of these divisors (counting 21492087) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111111000101110111
3
Ternary
1111102220121020
4
Quaternary
1101333011313
5
Quinary
21000221322
6
Senary
2044352223
8
Octal
121770567
10
Decimal
21492087
12
Duodecimal
7245673
16
Hexadecimal
147f177
20
Vigesimal
6e6a47
36
Base36
csnef
md5
b5b10ce6abb7bda8d8f5e4b947cc667a
sha1
f1016d09f41018823d69be5c3bdd52fe4ce7c3d9
sha256
a947758f4256b6024bb0af017b891773a4f67b6b32c12436d7b710915577f0fd
sha512
a8cb314eadd0bf6ca2d22416a7c84bfce205c207fc4c4cbd475f9f553a1b3c4cea5dcbaa9619b290dc6bff867475903fc30ba585c0f771cc146aa5e6dc12ba6a
ripemd-160
2b4480768a5582bbb9da36140a1b6976de640ebb
Diameter
42984174
Circumference
135038765.25903
Area
1.4511324456598E+15
Volume
4.158381969419E+22
Surface area
5.8045297826391E+15
Circumference
135038765.25903
Perimeter
85968348
Area
461909803615569
Diagonal
30394400.919102
Surface area
2771458821693414
Volume
9.9274056854587E+21
Space diagonal
37225386.644691
Perimeter
64476261
Area
2.0001281209408E+14
Altitude
18612693.322345
Surface area
2.0001281209408E+14
Volume
1.169955979963E+21
Height
10131466.973034