19987097 is an odd 8-digits composite number following 19987096
and preceding 19987098 . In scientific notation, it is written as 1.9987097 × 10^7.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 18449616 positive integers (up to 19987097) that are relatively prime to 19987097.
19987097 has 4 divisors, whose sum is 21524580
The reverse of 19987097 is 79078991
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
nineteen million nine hundred eighty-seven thousand ninety-seven
Scientific notation
1.9987097 × 10^7
Engineering notation
1.9987097 × 10^6
Prime Factorization
13 × 1537469
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19987097
Product of the distinct prime numbers
The prime factorization of 19987097 is 13 × 1537469.
Since it has a total of 2 prime factors.
7 , 5 , 39 , 91 , 699 , 389 , 6266 , 3609 , 47512 , 1657 , 369012 , 69517 , 2275997 , 8411740 , 89854007 , 89649474 , 911893633 , 468225966 , 4268182049 , 4759129464
n×2
39974194
n×3
59961291
n×4
79948388
n×5
99935485
n÷2
9993548.5
n÷3
6662365.6666667
n÷3
4996774.25
n÷5
3997419.4
n2
399484046487409
n3
7.9845263870964E+21
n4
1.5958750339795E+29
n5
3.1896909104027E+36
2 √n
4470.6931229956
3 √n
271.38337555091
4 √n
66.863241942009
5 √n
28.85027412563
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19987096
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19987097 can be divided by 4 positive divisors.
The sum of these divisors (counting 19987097) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100001111101010011001
3
Ternary
1101121110010212
4
Quaternary
1030033222121
5
Quinary
20104041342
6
Senary
1552220505
8
Octal
114175231
10
Decimal
19987097
12
Duodecimal
683a735
16
Hexadecimal
130fa99
20
Vigesimal
64i7eh
36
Base36
bwe55
md5
64c32c06cd663988bf233f7f1cf68ced
sha1
80d9202a6e8613f3ed2165253784b673e07ad306
sha256
83f1ecf76862d19535aaba30093e0b40df9e5be12936399cfef0a827224d34cc
sha512
c5377f006a029ae9157053972f17d11b2f27cd19333d4636caea66ae1b48028705a6d32181102055a95e704e7525c3b079fb5db7ffb7f84b885b08a4156ad649
ripemd-160
15b00aeb6ab6c2713a577d61d4d4ee61c727c002
Diameter
39974194
Circumference
125582634.20357
Area
1.2550161456712E+15
Volume
3.3445505920128E+22
Surface area
5.0200645826847E+15
Circumference
125582634.20357
Perimeter
79948388
Area
399484046487409
Diagonal
28266023.649867
Surface area
2396904278924454
Volume
7.9845263870964E+21
Space diagonal
34618667.499807
Perimeter
59961291
Area
1.7298166633235E+14
Altitude
17309333.749904
Surface area
1.7298166633235E+14
Volume
9.4098545881313E+20
Height
9422007.8832889