21493047 is an odd 8-digits composite number following 21493046
and preceding 21493048 . In scientific notation, it is written as 2.1493047 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13574520 positive integers (up to 21493047) that are relatively prime to 21493047.
21493047 has 8 divisors, whose sum is 30165760
The reverse of 21493047 is 74039412
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million four hundred ninety-three thousand forty-seven
Scientific notation
2.1493047 × 10^7
Engineering notation
2.1493047 × 10^6
Prime Factorization
3 × 19 × 377071
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21493047
Product of the distinct prime numbers
The prime factorization of 21493047 is 3 × 19 × 377071.
Since it has a total of 3 prime factors.
5 , 7 , 2 , 78 , 888 , 908 , 8579 , 3353 , 57942 , 10937 , 498977 , 921719 , 7854518 , 1710042 , 34015503 , 91521684 , 701785928 , 71535237 , 3846443076 , 3804031575
n×2
42986094
n×3
64479141
n×4
85972188
n×5
107465235
n÷2
10746523.5
n÷3
7164349
n÷3
5373261.75
n÷5
4298609.4
n2
461951069344209
n3
9.9287360451153E+21
n4
2.1339879046826E+29
n5
4.5865902332774E+36
2 √n
4636.0594258486
3 √n
278.03491013037
4 √n
68.088614509686
5 √n
29.272485373951
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
-21493046
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 21493047 can be divided by 8 positive divisors.
The sum of these divisors (counting 21493047) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111010100110111
3
Ternary
1111102221220210
4
Quaternary
1101333110313
5
Quinary
21000234142
6
Senary
2044400503
8
Octal
121772467
10
Decimal
21493047
12
Duodecimal
7246133
16
Hexadecimal
147f537
20
Vigesimal
6e6cc7
36
Base36
cso53
md5
31106849649c76fab284e2ceda0c991b
sha1
2430b6b31fd032dc8e61b568a0245707dbf0d5d8
sha256
48871c85b90e0804bf3182d270d7e849a9053b7a18251950cbf7c4f072a496e0
sha512
955b0799ac6bff0e56e3e09137d27d0e38aa7236daa7dec3dadde2da9c5b57f74e895fdd1bc350d58cf1d719f6add5ac82c3c38e9c1cb818bc02910d1233b760
ripemd-160
951e3a9da84b16a814eb84b0ef372c3aad8d73f0
Diameter
42986094
Circumference
135044797.11692
Area
1.4512620857697E+15
Volume
4.1589392291689E+22
Surface area
5.8050483430789E+15
Circumference
135044797.11692
Perimeter
85972188
Area
461951069344209
Diagonal
30395758.564122
Surface area
2771706416065254
Volume
9.9287360451153E+21
Space diagonal
37227049.413466
Perimeter
64479141
Area
2.0003068067874E+14
Altitude
18613524.706733
Surface area
2.0003068067874E+14
Volume
1.1701127643521E+21
Height
10131919.521374