19987148 is an even 8-digits composite number following 19987147
and preceding 19987149 . In scientific notation, it is written as 1.9987148 × 10^7.
The sum of its digits is 47. It has a total of 5 prime factors and 24 positive divisors.
There are 9464000 positive integers (up to 19987148) that are relatively prime to 19987148.
19987148 has 24 divisors, whose sum is 36877680
The reverse of 19987148 is 84178991
Previous prime number is 29
Is Prime? no Number parity even Number length 8 Sum of Digits 47 Digital Root 2
Name
nineteen million nine hundred eighty-seven thousand one hundred forty-eight
Scientific notation
1.9987148 × 10^7
Engineering notation
1.9987148 × 10^6
Prime Factorization
2 × 2 × 53 × 29 × 3251
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
9993574 Product of the distinct prime numbers
The prime factorization of 19987148 is 2 × 2 × 53 × 29 × 3251.
Since it has a total of 5 prime factors.
3 , 1 , 70 , 14 , 385 , 728 , 1392 , 2906 , 93086 , 5430 , 26266 , 88235 , 5802531 , 7640326 , 65456327 , 90942564 , 802926295 , 142167702 , 4914756605 , 7773740594
n×2
39974296
n×3
59961444
n×4
79948592
n×5
99935740
n÷2
9993574
n÷3
6662382.6666667
n÷3
4996787
n÷5
3997429.6
n2
399486085173904
n3
7.9845875083114E+21
n4
1.5958913224757E+29
n5
3.1897316054238E+36
2 √n4470.6988268055
3 √n271.3836063755
4 √n66.863284594802
5 √n28.850288848753
1 , 2 , 4 , 29 , 53 , 58 , 106 , 116 , 212 , 1537 , 3074 , 3251 , 6148 , 6502 , 13004 , 94279 , 172303 , 188558 , 344606 , 377116 , 689212 , 4996787 , 9993574 , 19987148
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
-19987147 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 19987148 can be divided by 24 positive divisors.
The sum of these divisors (counting 19987148) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100001111101011001100
3
Ternary
1101121110012202
4
Quaternary
1030033223030
5
Quinary
20104042043
6
Senary
1552221032
8
Octal
114175314
10
Decimal
19987148
12
Duodecimal
683a778
16
Hexadecimal
130facc
20
Vigesimal
64i7h8
36
Base36
bwe6k
md5
c29722c9669ae8b01c1a54b19d092544
sha1
5c7ce11aab8a0c1b4abc929d50bcfdf4f5d217d3
sha256
2e84b3aab5d3c8d9f13428dcff46400c33ec54c2a7a74d32e70b5f9610722877
sha512
3a59e85bbb02389e22e4baf8b4c361175b09c2e614f05778eae39fdaee69d9dc2a396257f8fbc39c30d7dca9d6d2ea7aef5a8160e5b938f61ef2f064fb4b89b3
ripemd-160
d22b6d2eb672f65aca8ee942814af5200ab47bc3
Diameter
39974296
Circumference
125582954.64602
Area
1.2550225503937E+15
Volume
3.3445761944075E+22
Surface area
5.0200902015747E+15
Circumference
125582954.64602
Perimeter
79948592
Area
399486085173904
Diagonal
28266095.774758
Surface area
2396916511043424
Volume
7.9845875083114E+21
Space diagonal
34618755.834399
Perimeter
59961444
Area
1.729825491095E+14
Altitude
17309377.917199
Surface area
1.729825491095E+14
Volume
9.409926620174E+20
Height
9422031.9249194