199987911 is an odd 9-digits composite number following 199987910
and preceding 199987912 . In scientific notation, it is written as 1.99987911 × 10^8.
The sum of its digits is 54. It has a total of 3 prime factors and 6 positive divisors.
There are 133325268 positive integers (up to 199987911) that are relatively prime to 199987911.
199987911 has 6 divisors, whose sum is 288871440
The reverse of 199987911 is 119789991
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 54
Digital Root 9
Name
one hundred ninety-nine million nine hundred eighty-seven thousand nine hundred eleven
Scientific notation
1.99987911 × 10^8
Engineering notation
1.99987911 × 10^6
Prime Factorization
3 × 3 × 22220879
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66662637
Product of the distinct prime numbers
The prime factorization of 199987911 is 3 × 3 × 22220879.
Since it has a total of 3 prime factors.
4 , 3 , 28 , 49 , 42 , 532 , 7568 , 4886 , 12029 , 59895 , 165208 , 81118 , 8569068 , 9123105 , 56738050 , 5952697 , 970835038 , 427892322 , 6380649196 , 6127348298
n×2
399975822
n×3
599963733
n×4
799951644
n×5
999939555
n÷2
99993955.5
n÷3
66662637
n÷3
49996977.75
n÷5
39997582.2
n2
39995164546143921
n3
7.9985494076846E+24
n4
1.5996131870731E+33
n5
3.1990329969081E+41
2 √n
14141.708206578
3 √n
584.79176458835
4 √n
118.91891441894
5 √n
45.729952343288
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-199987910
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 199987911 can be divided by 6 positive divisors.
The sum of these divisors (counting 199987911) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1011111010111001001011000111
3
Ternary
111221022102211200
4
Quaternary
23322321023013
5
Quinary
402144103121
6
Senary
31502233543
8
Octal
1372711307
10
Decimal
199987911
12
Duodecimal
56b858b3
16
Hexadecimal
beb92c7
20
Vigesimal
329i9fb
36
Base36
3b2fnr
md5
4cb3e24c316b3f5ba54108a988289e14
sha1
5b555c7c8c23e0022d7fecd13f5b2ec176ce9abb
sha256
3b1d6f4a400794ed86948386cd45a07479b0536d2e2d05f055cfd79a4fead0f7
sha512
4cd79d1d2ea317c88fe8140e1d414d27fdaf5e3102088d6a6e484c1d5e933db5a6e97d545ab3df96f4de0a42323b8723a8d3033680ca0db986c5c3bf120129be
ripemd-160
6bc948e650a8396aea9461acc27cd693868a9286
Diameter
399975822
Circumference
1256561104.0087
Area
1.2564851511728E+17
Volume
3.3504245411409E+25
Surface area
5.0259406046912E+17
Circumference
1256561104.0087
Perimeter
799951644
Area
39995164546143921
Diagonal
282825616.04686
Surface area
239970987276863526
Volume
7.9985494076846E+24
Space diagonal
346389222.75156
Perimeter
599963733
Area
1.731841426275E+16
Altitude
173194611.37578
Surface area
1.731841426275E+16
Volume
9.4263808763824E+23
Height
94275205.348954