21490919 is an odd 8-digits composite number following 21490918
and preceding 21490920 . In scientific notation, it is written as 2.1490919 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 19736640 positive integers (up to 21490919) that are relatively prime to 21490919.
21490919 has 16 divisors, whose sum is 23328000
The reverse of 21490919 is 91909412
Previous prime number is 179
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million four hundred ninety thousand nine hundred nineteen
Scientific notation
2.1490919 × 10^7
Engineering notation
2.1490919 × 10^6
Prime Factorization
19 × 71 × 179 × 89
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21490919
Product of the distinct prime numbers
The prime factorization of 21490919 is 19 × 71 × 179 × 89.
Since it has a total of 4 prime factors.
1 , 8 , 25 , 39 , 273 , 460 , 875 , 7533 , 50772 , 72679 , 497904 , 646848 , 7618194 , 5998325 , 62344977 , 14547990 , 482937334 , 541968498 , 9390715441 , 1713143155
n×2
42981838
n×3
64472757
n×4
85963676
n×5
107454595
n÷2
10745459.5
n÷3
7163639.6666667
n÷3
5372729.75
n÷5
4298183.8
n2
461859599464561
n3
9.9257872414653E+21
n4
2.1331428961756E+29
n5
4.5843201197136E+36
2 √n
4635.8299149128
3 √n
278.02573386333
4 √n
68.086929104732
5 √n
29.271905704479
1 , 19 , 71 , 89 , 179 , 1349 , 1691 , 3401 , 6319 , 12709 , 15931 , 120061 , 241471 , 302689 , 1131101 , 21490919
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
-21490918
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 21490919 can be divided by 16 positive divisors.
The sum of these divisors (counting 21490919) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001111110110011100111
3
Ternary
1111102211222222
4
Quaternary
1101332303213
5
Quinary
21000202134
6
Senary
2044342555
8
Octal
121766347
10
Decimal
21490919
12
Duodecimal
7244a5b
16
Hexadecimal
147ece7
20
Vigesimal
6e675j
36
Base36
csmhz
md5
e0b20b294bf536234059c92ed68947f8
sha1
614ded3a84ff55fb5f4a8ede31d08d141a45770a
sha256
26aafb2ea0b530b835f8dda902bbc45f969ff3547faefcb538f48c119ae9d1f2
sha512
b74f501c5cb57415bbeca7ba3903fc428058d12df4146998cba9eda16ac75c8088f890a52e80f30e6a365e1738dadd2ca8a5f8820f555d25effb8d0e87ab62af
ripemd-160
58fce53dcb8a9ce784042e0463ec57ebe0a50fca
Diameter
42981838
Circumference
135031426.49859
Area
1.4509747246678E+15
Volume
4.1577040371844E+22
Surface area
5.8038988986712E+15
Circumference
135031426.49859
Perimeter
85963676
Area
461859599464561
Diagonal
30392749.117662
Surface area
2771157596787366
Volume
9.9257872414653E+21
Space diagonal
37223363.609347
Perimeter
64472757
Area
1.9999107305901E+14
Altitude
18611681.804674
Surface area
1.9999107305901E+14
Volume
1.1697652445092E+21
Height
10130916.372554