19987089 is an odd 8-digits composite number following 19987088
and preceding 19987090 . In scientific notation, it is written as 1.9987089 × 10^7.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 13314240 positive integers (up to 19987089) that are relatively prime to 19987089.
19987089 has 8 divisors, whose sum is 26670432
The reverse of 19987089 is 98078991
Previous prime number is 2161
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
nineteen million nine hundred eighty-seven thousand eighty-nine
Scientific notation
1.9987089 × 10^7
Engineering notation
1.9987089 × 10^6
Prime Factorization
3 × 2161 × 3083
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19987089
Product of the distinct prime numbers
The prime factorization of 19987089 is 3 × 2161 × 3083.
Since it has a total of 3 prime factors.
10 , 1 , 93 , 68 , 474 , 122 , 4457 , 8886 , 5913 , 54136 , 589536 , 737728 , 6720934 , 3962436 , 3392761 , 74405085 , 148649265 , 622872136 , 1793047892 , 3228758381
n×2
39974178
n×3
59961267
n×4
79948356
n×5
99935445
n÷2
9993544.5
n÷3
6662363
n÷3
4996772.25
n÷5
3997417.8
n2
399483726693921
n3
7.9845167994831E+21
n4
1.5958724789326E+29
n5
3.1896845269077E+36
2 √n
4470.6922282796
3 √n
271.3833393431
4 √n
66.863235251367
5 √n
28.850271816117
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
-19987088
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 19987089 can be divided by 8 positive divisors.
The sum of these divisors (counting 19987089) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100001111101010010001
3
Ternary
1101121110010120
4
Quaternary
1030033222101
5
Quinary
20104041324
6
Senary
1552220453
8
Octal
114175221
10
Decimal
19987089
12
Duodecimal
683a729
16
Hexadecimal
130fa91
20
Vigesimal
64i7e9
36
Base36
bwe4x
md5
ccb5a5b4c51198e065e5c35b0a3be71d
sha1
3e2b418e91110de53ac39fefd080cfb3828a535c
sha256
7b09bf7d21ffebbf66ef246f3e9f888ff80688e38707782255fb4dec77942f5e
sha512
5366c3d9a0255630da185bee89f786adefb4e9f0a3d279ec0a893693fc50eedc85493d6662bdd73efd2a5779fa796641c2cb4c79c32cda0743ae94be3d4fb085
ripemd-160
cda292984b376396e9e462f2b99f654449cbf4d5
Diameter
39974178
Circumference
125582583.93809
Area
1.2550151410103E+15
Volume
3.3445465759627E+22
Surface area
5.0200605640412E+15
Circumference
125582583.93809
Perimeter
79948356
Area
399483726693921
Diagonal
28266012.336158
Surface area
2396902360163526
Volume
7.9845167994831E+21
Space diagonal
34618653.643401
Perimeter
59961267
Area
1.7298152785771E+14
Altitude
17309326.821701
Surface area
1.7298152785771E+14
Volume
9.4098432890207E+20
Height
9422004.1120527