1661985293 is an odd 10-digits composite number following 1661985292
and preceding 1661985294 . In scientific notation, it is written as 1.661985293 × 10^9.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 1644851328 positive integers (up to 1661985293) that are relatively prime to 1661985293.
1661985293 has 4 divisors, whose sum is 1679119260
The reverse of 1661985293 is 3925891661
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 50
Digital Root 5
Name
one billion six hundred sixty-one million nine hundred eighty-five thousand two hundred ninety-three
Scientific notation
1.661985293 × 10^9
Engineering notation
1.661985293 × 10^9
Prime Factorization
97 × 17133869
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1661985293
Product of the distinct prime numbers
The prime factorization of 1661985293 is 97 × 17133869.
Since it has a total of 2 prime factors.
4 , 4 , 66 , 80 , 142 , 113 , 5386 , 2976 , 26204 , 3572 , 67553 , 615426 , 3217443 , 1597045 , 42497106 , 8311688 , 832094636 , 946335544 , 5346364707 , 9672442625
n×2
3323970586
n×3
4985955879
n×4
6647941172
n×5
8309926465
n÷2
830992646.5
n÷3
553995097.66667
n÷3
415496323.25
n÷5
332397058.6
n2
2762195114148295849
n3
4.5907276561109E+27
n4
7.6297218486247E+36
n5
1.2680485502095E+46
2 √n
40767.453844948
3 √n
1184.5199840919
4 √n
201.90951895576
5 √n
69.843410045086
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
-1661985292
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 1661985293 can be divided by 4 positive divisors.
The sum of these divisors (counting 1661985293) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100011000011111110001000001101
3
Ternary
11021211022121012212
4
Quaternary
1203003332020031
5
Quinary
11400432012133
6
Senary
432530040205
8
Octal
14303761015
10
Decimal
1661985293
12
Duodecimal
3a4719065
16
Hexadecimal
630fe20d
20
Vigesimal
15j7834d
36
Base36
rhi425
md5
ffbcab1259b8b0b47f30d140dd264ff4
sha1
099816031b878e9838946132b2e3c57c61ddb38b
sha256
9a2cc95ed9f597927ce3dbf587e67439012937dbdbc3a1b817393e264c4acaa2
sha512
38f12cb29f9e61cd32c7cb5eb4136e6389a5ebeac6e733be0839bea546b5093998c2549e8ca99b8a32d66a177ac8cab4e2452dbe4f9ef85870920afe51052d8f
ripemd-160
a339a5e64de424f39e5ab858541f33388e993db1
Diameter
3323970586
Circumference
10442561573.726
Area
8.6776918783899E+18
Volume
1.9229595038759E+28
Surface area
3.471076751356E+19
Circumference
10442561573.726
Perimeter
6647941172
Area
2762195114148295849
Diagonal
2350402141.8252
Surface area
1.657317068489E+19
Volume
4.5907276561109E+27
Space diagonal
2878642968.9082
Perimeter
4985955879
Area
1.1960655695308E+18
Altitude
1439321484.4541
Surface area
1.1960655695308E+18
Volume
5.4102244270278E+26
Height
783467380.60841