19491490 is an even 8-digits composite number following 19491489
and preceding 19491491 . In scientific notation, it is written as 1.9491490 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 7736560 positive integers (up to 19491490) that are relatively prime to 19491490.
19491490 has 16 divisors, whose sum is 35354880
The reverse of 19491490 is 09419491
Previous prime number is 131
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
nineteen million four hundred ninety-one thousand four hundred ninety
Scientific notation
1.9491490 × 10^7
Engineering notation
1.9491490 × 10^6
Prime Factorization
2 × 5 × 131 × 14879
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
19491490
Product of the distinct prime numbers
The prime factorization of 19491490 is 2 × 5 × 131 × 14879.
Since it has a total of 4 prime factors.
6 , 9 , 41 , 5 , 195 , 83 , 2961 , 2773 , 85805 , 54566 , 946911 , 701158 , 8854792 , 2563987 , 97697522 , 59945802 , 632236607 , 504412340 , 4458257866 , 6189796483
n×2
38982980
n×3
58474470
n×4
77965960
n×5
97457450
n÷2
9745745
n÷3
6497163.3333333
n÷3
4872872.5
n÷5
3898298
n2
379918182420100
n3
7.4051714534596E+21
n4
1.4433782533339E+29
n5
2.8133592791076E+36
2 √n
4414.9167602572
3 √n
269.12147008719
4 √n
66.444839982178
5 √n
28.705757247457
1 , 2 , 5 , 10 , 131 , 262 , 655 , 1310 , 14879 , 29758 , 74395 , 148790 , 1949149 , 3898298 , 9745745 , 19491490
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
-19491489
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 19491490 can be divided by 16 positive divisors.
The sum of these divisors (counting 19491490) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001010010110101010100010
3
Ternary
1100200021022001
4
Quaternary
1022112222202
5
Quinary
14442211430
6
Senary
1533434214
8
Octal
112265242
10
Decimal
19491490
12
Duodecimal
663b96a
16
Hexadecimal
1296aa2
20
Vigesimal
61g8ea
36
Base36
blrqa
md5
57ba244a45ae216deaba933b32f4c2b6
sha1
4bfb79d9460864e2eff7adb8a0abdbfe7f593524
sha256
4fbf74b3a5d454276fb6ea8c8ddf83aa2961fa669575a6afdd0faf3ec4dda810
sha512
f7d881e0de4e675190c10abdd5e809deec817d6f06ea53525e128618a8343bd9cd1593ee3e8a38c532136cc4e83a40c95d752541e9227b92c8a9630a879245ae
ripemd-160
6a548294ad7da4596633a5acc31884fe7208fffc
Diameter
38982980
Circumference
122468643.58304
Area
1.1935481708562E+15
Volume
3.1018709649015E+22
Surface area
4.7741926834247E+15
Circumference
122468643.58304
Perimeter
77965960
Area
379918182420100
Diagonal
27565129.50886
Surface area
2279509094520600
Volume
7.4051714534596E+21
Space diagonal
33760250.995221
Perimeter
58474470
Area
1.6450939866771E+14
Altitude
16880125.49761
Surface area
1.6450939866771E+14
Volume
8.7270782509838E+20
Height
9188376.5029532