21491434 is an even 8-digits composite number following 21491433
and preceding 21491435 . In scientific notation, it is written as 2.1491434 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 10113600 positive integers (up to 21491434) that are relatively prime to 21491434.
21491434 has 8 divisors, whose sum is 34133508
The reverse of 21491434 is 43419412
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million four hundred ninety-one thousand four hundred thirty-four
Scientific notation
2.1491434 × 10^7
Engineering notation
2.1491434 × 10^6
Prime Factorization
2 × 17 × 632101
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21491434
Product of the distinct prime numbers
The prime factorization of 21491434 is 2 × 17 × 632101.
Since it has a total of 3 prime factors.
8 , 5 , 19 , 26 , 285 , 825 , 9421 , 2735 , 52574 , 45887 , 447041 , 769765 , 2893952 , 2235048 , 45304738 , 50880900 , 139281549 , 916284728 , 612570228 , 7387590121
n×2
42982868
n×3
64474302
n×4
85965736
n×5
107457170
n÷2
10745717
n÷3
7163811.3333333
n÷3
5372858.5
n÷5
4298286.8
n2
461881735376356
n3
9.9265008316464E+21
n4
2.1333473747427E+29
n5
4.5848694303357E+36
2 √n
4635.8854601899
3 √n
278.02795467901
4 √n
68.087337003219
5 √n
29.272045995241
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
-21491433
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 21491434 can be divided by 8 positive divisors.
The sum of these divisors (counting 21491434) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110111011101010
3
Ternary
1111102212201001
4
Quaternary
1101332323222
5
Quinary
21000211214
6
Senary
2044345214
8
Octal
121767352
10
Decimal
21491434
12
Duodecimal
724520a
16
Hexadecimal
147eeea
20
Vigesimal
6e68be
36
Base36
csmwa
md5
98af9e418291b80c1d16500200cd7334
sha1
84acd84723ca7a3f841af40fd996a5ff406b9a8e
sha256
dbc6fdd5afa77fe511e0c71763ad438637ff1ff5280cf87483c934a470902d62
sha512
5da3762bfa6b4cac19aa7cafd670ad9d5d150734cefac9cb86f3e6435559a0fd94b0fab19ae3c4c3bf1b2ab1ee0adedeaf92bfca4560f0f0630caf5d825b6d20
ripemd-160
c9a838aaf6b2ff2b359b911d4a284c1e3e630926
Diameter
42982868
Circumference
135034662.33902
Area
1.4510442666857E+15
Volume
4.1580029451404E+22
Surface area
5.8041770667427E+15
Circumference
135034662.33902
Perimeter
85965736
Area
461881735376356
Diagonal
30393477.437646
Surface area
2771290412258136
Volume
9.9265008316464E+21
Space diagonal
37224255.615513
Perimeter
64474302
Area
2.0000065818998E+14
Altitude
18612127.807757
Surface area
2.0000065818998E+14
Volume
1.1698493419185E+21
Height
10131159.145882