19987708 is an even 8-digits composite number following 19987707
and preceding 19987709 . In scientific notation, it is written as 1.9987708 × 10^7.
The sum of its digits is 49. It has a total of 5 prime factors and 24 positive divisors.
There are 9085824 positive integers (up to 19987708) that are relatively prime to 19987708.
19987708 has 24 divisors, whose sum is 38238032
The reverse of 19987708 is 80778991
Previous prime number is 67
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
nineteen million nine hundred eighty-seven thousand seven hundred eight
Scientific notation
1.9987708 × 10^7
Engineering notation
1.9987708 × 10^6
Prime Factorization
2 × 2 × 13 × 67 × 5737
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
9993854
Product of the distinct prime numbers
The prime factorization of 19987708 is 2 × 2 × 13 × 67 × 5737.
Since it has a total of 5 prime factors.
8 , 10 , 29 , 35 , 717 , 13 , 6897 , 503 , 43362 , 86196 , 546361 , 406209 , 6287087 , 87807 , 86132877 , 27994859 , 702783409 , 93573248 , 708459581 , 2653020487
n×2
39975416
n×3
59963124
n×4
79950832
n×5
99938540
n÷2
9993854
n÷3
6662569.3333333
n÷3
4996927
n÷5
3997541.6
n2
399508471093264
n3
7.9852586637386E+21
n4
1.5960701847528E+29
n5
3.1901784800344E+36
2 √n
4470.7614563964
3 √n
271.38614089419
4 √n
66.863752933831
5 √n
28.850450512445
1 , 2 , 4 , 13 , 26 , 52 , 67 , 134 , 268 , 871 , 1742 , 3484 , 5737 , 11474 , 22948 , 74581 , 149162 , 298324 , 384379 , 768758 , 1537516 , 4996927 , 9993854 , 19987708
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
-19987707
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 19987708 can be divided by 24 positive divisors.
The sum of these divisors (counting 19987708) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100001111110011111100
3
Ternary
1101121110222111
4
Quaternary
1030033303330
5
Quinary
20104101313
6
Senary
1552223404
8
Octal
114176374
10
Decimal
19987708
12
Duodecimal
683ab64
16
Hexadecimal
130fcfc
20
Vigesimal
64i958
36
Base36
bwem4
md5
7bb00dbf25488608df980baed4868df3
sha1
c90eea1b631548751fde291bc0929d323a18256c
sha256
be2c17ce4ee246c4b2203abc6077b4ab131a94ebf073a2fb013c91a6f63accac
sha512
651292e8607d252ee6c25bfe73c7c4ef17d62d659b174766d66bd87db35b3f9cb51972cc0bff440c27fc7fd0bf89f5d460cfacd4372193303e1a1613b987b02c
ripemd-160
d88f2a92402448bb303f09a67f76a9a3a775c71f
Diameter
39975416
Circumference
125586473.2298
Area
1.2550928778335E+15
Volume
3.3448573273354E+22
Surface area
5.020371511334E+15
Circumference
125586473.2298
Perimeter
79950832
Area
399508471093264
Diagonal
28266887.734353
Surface area
2397050826559584
Volume
7.9852586637386E+21
Space diagonal
34619725.782851
Perimeter
59963124
Area
1.7299224249692E+14
Altitude
17309862.891425
Surface area
1.7299224249692E+14
Volume
9.4107175844303E+20
Height
9422295.9114511