21492919 is an odd 8-digits composite number following 21492918
and preceding 21492920 . In scientific notation, it is written as 2.1492919 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 6 positive divisors.
There are 18422460 positive integers (up to 21492919) that are relatively prime to 21492919.
21492919 has 6 divisors, whose sum is 25002024
The reverse of 21492919 is 91929412
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million four hundred ninety-two thousand nine hundred nineteen
Scientific notation
2.1492919 × 10^7
Engineering notation
2.1492919 × 10^6
Prime Factorization
7 × 7 × 438631
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
3070417
Product of the distinct prime numbers
The prime factorization of 21492919 is 7 × 7 × 438631.
Since it has a total of 3 prime factors.
8 , 3 , 24 , 46 , 845 , 413 , 323 , 5272 , 20252 , 55235 , 445030 , 173386 , 756911 , 3611066 , 77479465 , 88262214 , 659909931 , 863430710 , 6462776195 , 5307688739
n×2
42985838
n×3
64478757
n×4
85971676
n×5
107464595
n÷2
10746459.5
n÷3
7164306.3333333
n÷3
5373229.75
n÷5
4298583.8
n2
461945567140561
n3
9.9285586569611E+21
n4
2.1339370700081E+29
n5
4.5864536596782E+36
2 √n
4636.0456210007
3 √n
278.03435819158
4 √n
68.088513135482
5 √n
29.272450507912
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21492918
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21492919 can be divided by 6 positive divisors.
The sum of these divisors (counting 21492919) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010001111111010010110111
3
Ternary
1111102221202001
4
Quaternary
1101333102313
5
Quinary
21000233134
6
Senary
2044400131
8
Octal
121772267
10
Decimal
21492919
12
Duodecimal
7246047
16
Hexadecimal
147f4b7
20
Vigesimal
6e6c5j
36
Base36
cso1j
md5
784ef37b21378dae6bb202f88a79f1aa
sha1
4ddcf682b537c1ba2a80e3eaac4e4fdced1556ad
sha256
dc3a8ff33f2f429fc8a1d7599f876e7fb769ddf25d79234b09fb267f68e3b9c9
sha512
8a939a35dacda8d699274befccf3b864c064d064d06ef819fd4f0abfe6a3e84232364c846706981a8e49bfbc05facd6aeafcc6216a73deaea50b7db8139b121b
ripemd-160
2ec3d59a494b5e8e432af443ab1966f122929aa7
Diameter
42985838
Circumference
135043992.8692
Area
1.4512448000872E+15
Volume
4.1588649249926E+22
Surface area
5.8049792003486E+15
Circumference
135043992.8692
Perimeter
85971676
Area
461945567140561
Diagonal
30395577.544786
Surface area
2771673402843366
Volume
9.9285586569611E+21
Space diagonal
37226827.710962
Perimeter
64478757
Area
2.0002829815467E+14
Altitude
18613413.855481
Surface area
2.0002829815467E+14
Volume
1.1700918589576E+21
Height
10131859.181595