199981661 is an odd 9-digits composite number following 199981660
and preceding 199981662 . In scientific notation, it is written as 1.99981661 × 10^8.
The sum of its digits is 50. It has a total of 3 prime factors and 6 positive divisors.
There are 181801400 positive integers (up to 199981661) that are relatively prime to 199981661.
199981661 has 6 divisors, whose sum is 219814686
The reverse of 199981661 is 166189991
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 50
Digital Root 5
Name
one hundred ninety-nine million nine hundred eighty-one thousand six hundred sixty-one
Scientific notation
1.99981661 × 10^8
Engineering notation
1.99981661 × 10^6
Prime Factorization
11 × 11 × 1652741
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18180151
Product of the distinct prime numbers
The prime factorization of 199981661 is 11 × 11 × 1652741.
Since it has a total of 3 prime factors.
10 , 6 , 71 , 72 , 841 , 435 , 4498 , 7942 , 88825 , 58027 , 91888 , 144685 , 3418593 , 8921515 , 46044736 , 65927773 , 423827331 , 492843160 , 1485435497 , 99074694
n×2
399963322
n×3
599944983
n×4
799926644
n×5
999908305
n÷2
99990830.5
n÷3
66660553.666667
n÷3
49995415.25
n÷5
39996332.2
n2
39992664736318921
n3
7.9977995217852E+24
n4
1.5994132327116E+33
n5
3.1985331490305E+41
2 √n
14141.487227304
3 √n
584.78567257578
4 √n
118.91798529787
5 √n
45.729666510236
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
-199981660
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 199981661 can be divided by 6 positive divisors.
The sum of these divisors (counting 199981661) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1011111010110111101001011101
3
Ternary
111221022010021012
4
Quaternary
23322313221131
5
Quinary
402143403121
6
Senary
31502145005
8
Octal
1372675135
10
Decimal
199981661
12
Duodecimal
56b82165
16
Hexadecimal
beb7a5d
20
Vigesimal
329he31
36
Base36
3b2au5
md5
139cd9a523efaa86147c4c40f62722af
sha1
3095c0aab5be7507ff9543cdca0ca1e9ed0d3634
sha256
93b101ab7fa32e6f2b8dcfd2a0c2fbac3c601a036008e0f856ec2f855c0bf425
sha512
672fa50a876915aefa98532ca45c0c02f9f9f4012d8940e5a2c63befed439292313456bc56f8ac5a1ea01eb3793bfa88b4e37e4ed9994717177b8227d1761a67
ripemd-160
31c2d037e764653d80dd0d70a06c76247f346acd
Diameter
399963322
Circumference
1256521834.1006
Area
1.256406617331E+17
Volume
3.3501104296699E+25
Surface area
5.025626469324E+17
Circumference
1256521834.1006
Perimeter
799926644
Area
39992664736318921
Diagonal
282816777.2121
Surface area
239955988417913526
Volume
7.9977995217852E+24
Space diagonal
346378397.43402
Perimeter
599944983
Area
1.7317331813343E+16
Altitude
173189198.71701
Surface area
1.7317331813343E+16
Volume
9.4254971273747E+23
Height
94272259.0707