19908087 is an odd 8-digits composite number following 19908086
and preceding 19908088 . In scientific notation, it is written as 1.9908087 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 12573792 positive integers (up to 19908087) that are relatively prime to 19908087.
19908087 has 8 divisors, whose sum is 20389600
The reverse of 19908087 is 78080991
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
nineteen million nine hundred eight thousand eighty-seven
Scientific notation
1.9908087 × 10^7
Engineering notation
1.9908087 × 10^6
Prime Factorization
69 × 109 × 2647
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19908087
Product of the distinct prime numbers
The prime factorization of 19908087 is 69 × 109 × 2647.
Since it has a total of 3 prime factors.
1 , 4 , 54 , 16 , 95 , 104 , 4010 , 9044 , 84371 , 55551 , 193239 , 781238 , 1345109 , 9060463 , 59678670 , 78127694 , 64203510 , 701820925 , 124096894 , 5275809657
n×2
39816174
n×3
59724261
n×4
79632348
n×5
99540435
n÷2
9954043.5
n÷3
6636029
n÷3
4977021.75
n÷5
3981617.4
n2
396331927999569
n3
7.8902105034932E+21
n4
1.5707899715186E+29
n5
3.1271423411719E+36
2 √n
4461.8479355532
3 √n
271.02530593423
4 √n
66.797065321413
5 √n
28.82742865628
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
-19908086
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 19908087 can be divided by 8 positive divisors.
The sum of these divisors (counting 19908087) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001011111100010111110111
3
Ternary
1101110102202120
4
Quaternary
1023330113313
5
Quinary
20044024322
6
Senary
1550411023
8
Octal
113742767
10
Decimal
19908087
12
Duodecimal
6800a73
16
Hexadecimal
12fc5f7
20
Vigesimal
648a47
36
Base36
bup6f
md5
1e9ba751f9963f2b2e684f9e16e0dcb8
sha1
80cb847ef38a9f0064b17c81b2a5336d1a6c7313
sha256
ad92542462907ad3262fa001d65bcc299a3711e00a43b2d41515c51797ffd205
sha512
855fb8559199e95ea2ba0d02beb378a8e7ace5d75e4f7981218565575deb18fcc05ff96b5985bf5c80618ff2b2d4b15ca1559d1d618584f2f86abd40de0a49fd
ripemd-160
e1de247ccc11d6a83f0578a583bc2631f8998cd2
Diameter
39816174
Circumference
125086199.73245
Area
1.2451134733865E+15
Volume
3.3050436470735E+22
Surface area
4.9804538935461E+15
Circumference
125086199.73245
Perimeter
79632348
Area
396331927999569
Diagonal
28154286.636304
Surface area
2377991567997414
Volume
7.8902105034932E+21
Space diagonal
34481818.165501
Perimeter
59724261
Area
1.7161675898925E+14
Altitude
17240909.082751
Surface area
1.7161675898925E+14
Volume
9.2987022533489E+20
Height
9384762.2121012