19987149 is an odd 8-digits composite number following 19987148
and preceding 19987150 . In scientific notation, it is written as 1.9987149 × 10^7.
The sum of its digits is 48. It has a total of 5 prime factors and 24 positive divisors.
There are 10541664 positive integers (up to 19987149) that are relatively prime to 19987149.
19987149 has 24 divisors, whose sum is 33388320
The reverse of 19987149 is 94178991
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
nineteen million nine hundred eighty-seven thousand one hundred forty-nine
Scientific notation
1.9987149 × 10^7
Engineering notation
1.9987149 × 10^6
Prime Factorization
3 × 13 × 7 × 7 × 10459
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2855307
Product of the distinct prime numbers
The prime factorization of 19987149 is 3 × 13 × 7 × 7 × 10459.
Since it has a total of 5 prime factors.
10 , 5 , 57 , 68 , 654 , 12 , 1746 , 3275 , 4738 , 45248 , 817833 , 485106 , 9789962 , 6971464 , 58276427 , 92063267 , 406325066 , 26838548 , 1517827103 , 5168784500
n×2
39974298
n×3
59961447
n×4
79948596
n×5
99935745
n÷2
9993574.5
n÷3
6662383
n÷3
4996787.25
n÷5
3997429.8
n2
399486125148201
n3
7.9845887067697E+21
n4
1.5958916418592E+29
n5
3.1897324033695E+36
2 √n
4470.6989386448
3 √n
271.38361090147
4 √n
66.863285431131
5 √n
28.850289137441
1 , 3 , 7 , 13 , 21 , 39 , 49 , 91 , 147 , 273 , 637 , 1911 , 10459 , 31377 , 73213 , 135967 , 219639 , 407901 , 512491 , 951769 , 1537473 , 2855307 , 6662383 , 19987149
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19987148
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19987149 can be divided by 24 positive divisors.
The sum of these divisors (counting 19987149) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100001111101011001101
3
Ternary
1101121110012210
4
Quaternary
1030033223031
5
Quinary
20104042044
6
Senary
1552221033
8
Octal
114175315
10
Decimal
19987149
12
Duodecimal
683a779
16
Hexadecimal
130facd
20
Vigesimal
64i7h9
36
Base36
bwe6l
md5
d169142040fbe081f9f6923b99d5116f
sha1
fa792f73a4b6e1841febc491461862b6088bc89f
sha256
f270b54e13fd575fdc64ae134b8aeb241615fb0083a577e9cb54e7b5a361ab52
sha512
b1740b1d875b4b05ff426b3f4349d9423d39eb083ee10a01f62a09c66f142263a06fd73ff7de8ac8bd11537c0dc1e363f95df183faac791eea0ad0343b70ea01
ripemd-160
e00eb4caee54d9cec0aa99ce2987ddd981ca5655
Diameter
39974298
Circumference
125582960.92921
Area
1.2550226759766E+15
Volume
3.3445766964165E+22
Surface area
5.0200907039066E+15
Circumference
125582960.92921
Perimeter
79948596
Area
399486125148201
Diagonal
28266097.188972
Surface area
2396916750889206
Volume
7.9845887067697E+21
Space diagonal
34618757.566449
Perimeter
59961447
Area
1.7298256641888E+14
Altitude
17309378.783225
Surface area
1.7298256641888E+14
Volume
9.4099280325707E+20
Height
9422032.3963239