1686981245 is an odd 10-digits composite number following 1686981244
and preceding 1686981246 . In scientific notation, it is written as 1.686981245 × 10^9.
The sum of its digits is 50. It has a total of 4 prime factors and 16 positive divisors.
There are 1341510144 positive integers (up to 1686981245) that are relatively prime to 1686981245.
1686981245 has 16 divisors, whose sum is 2036527920
The reverse of 1686981245 is 5421896861
Previous prime number is 2393
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 50
Digital Root 5
Name
one billion six hundred eighty-six million nine hundred eighty-one thousand two hundred forty-five
Scientific notation
1.686981245 × 10^9
Engineering notation
1.686981245 × 10^9
Prime Factorization
5 × 509 × 2393 × 277
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1686981245
Product of the distinct prime numbers
The prime factorization of 1686981245 is 5 × 509 × 2393 × 277.
Since it has a total of 4 prime factors.
10 , 5 , 81 , 45 , 142 , 309 , 3988 , 5484 , 22028 , 9828 , 497021 , 309726 , 2956017 , 5093511 , 27278406 , 58286469 , 635141132 , 830254979 , 5493275003 , 4902462699
n×2
3373962490
n×3
5060943735
n×4
6747924980
n×5
8434906225
n÷2
843490622.5
n÷3
562327081.66667
n÷3
421745311.25
n÷5
337396249
n2
2845905720981750025
n3
4.8009895763344E+27
n4
8.0991793727167E+36
n5
1.3663163701664E+46
2 √n
41072.877242774
3 √n
1190.4287805868
4 √n
202.66444493984
5 √n
70.052243865843
1 , 5 , 277 , 509 , 1385 , 2393 , 2545 , 11965 , 140993 , 662861 , 704965 , 1218037 , 3314305 , 6090185 , 337396249 , 1686981245
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1686981244
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1686981245 can be divided by 16 positive divisors.
The sum of these divisors (counting 1686981245) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100100100011010100101001111101
3
Ternary
11100120100112012212
4
Quaternary
1210203110221331
5
Quinary
11423331344440
6
Senary
435221510205
8
Octal
14443245175
10
Decimal
1686981245
12
Duodecimal
3b0b72365
16
Hexadecimal
648d4a7d
20
Vigesimal
1673cd25
36
Base36
rwdv25
md5
4d98e8190ae84ef9c02542d123f5f45f
sha1
dacb9c1814106b9465173280056275ce19cfab11
sha256
6ff5ec65fcfb05ab8350a586d7bfabb0773c620803f60c4dd99e680adbf4ee05
sha512
d272e8ba667d77cb2b47a738247c9165b62c2fce850645dd982f2311c2e9b9d561da95534eca223e3cac926310c421be9259ae678ffdd9df02c9f3bf1a92deb9
ripemd-160
fb0a299eb7fb96be32bbdbfe8b257ea22f33e097
Diameter
3373962490
Circumference
10599615772.072
Area
8.9406765058454E+18
Volume
2.0110338110631E+28
Surface area
3.5762706023382E+19
Circumference
10599615772.072
Perimeter
6747924980
Area
2845905720981750025
Diagonal
2385751756.148
Surface area
1.7075434325891E+19
Volume
4.8009895763344E+27
Space diagonal
2921937227.7558
Perimeter
5060943735
Area
1.2323133255728E+18
Altitude
1460968613.8779
Surface area
1.2323133255728E+18
Volume
5.6580204763867E+26
Height
795250585.38268