2945649985 is an odd 10-digits composite number following 2945649984
and preceding 2945649986 . In scientific notation, it is written as 2.945649985 × 10^9.
The sum of its digits is 61. It has a total of 4 prime factors and 16 positive divisors.
There are 2344668480 positive integers (up to 2945649985) that are relatively prime to 2945649985.
2945649985 has 16 divisors, whose sum is 3552606720
The reverse of 2945649985 is 5899465492
Previous prime number is 389
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 61
Digital Root 7
Name
two billion nine hundred forty-five million six hundred forty-nine thousand nine hundred eighty-five
Scientific notation
2.945649985 × 10^9
Engineering notation
2.945649985 × 10^9
Prime Factorization
5 × 3271 × 389 × 463
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2945649985
Product of the distinct prime numbers
The prime factorization of 2945649985 is 5 × 3271 × 389 × 463.
Since it has a total of 4 prime factors.
8 , 10 , 99 , 39 , 829 , 804 , 6537 , 696 , 98978 , 60899 , 475732 , 842562 , 3624920 , 509246 , 63036979 , 89673740 , 256480257 , 185887629 , 9645421094 , 6031431076
n×2
5891299970
n×3
8836949955
n×4
11782599940
n×5
14728249925
n÷2
1472824992.5
n÷3
981883328.33333
n÷3
736412496.25
n÷5
589129997
n2
8676853834130500225
n3
2.5558974366354E+28
n4
7.5287792458865E+37
n5
2.2177148472714E+47
2 √n
54273.84254869
3 √n
1433.4868509026
4 √n
232.96747100977
5 √n
78.313426824458
1 , 5 , 389 , 463 , 1945 , 2315 , 3271 , 16355 , 180107 , 900535 , 1272419 , 1514473 , 6362095 , 7572365 , 589129997 , 2945649985
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
-2945649984
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 2945649985 can be divided by 16 positive divisors.
The sum of these divisors (counting 2945649985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10101111100100110000110101000001
3
Ternary
21121021202112010121
4
Quaternary
2233210300311001
5
Quinary
22013041244420
6
Senary
1204143300241
8
Octal
25744606501
10
Decimal
2945649985
12
Duodecimal
6a25aa681
16
Hexadecimal
af930d41
20
Vigesimal
260a64j5
36
Base36
1cpri2p
md5
28f3fc8a1c19039729c492e964022daa
sha1
619b5efff82ba6e3d781b0e85038714f2efdea07
sha256
2a0ce5460650036aa5dbdb7036ea99ff9d53bfc174ac3d9c9f49120525580a1f
sha512
ced3ad8aa94fc34041a8ec2f3957f3be21404e0d2b17cbe9f8d202ca9ecd0ac1bef5cd978ca18a0f772e1811e6e048db57ce8c6a179aec1f2f63bdf00422f6a4
ripemd-160
61590b70993fadb9b87cd2d9bd3dbbf1b8218c4f
Diameter
5891299970
Circumference
18508064705.846
Area
2.7259140261577E+19
Volume
1.0706118147017E+29
Surface area
1.0903656104631E+20
Circumference
18508064705.846
Perimeter
11782599940
Area
8676853834130500225
Diagonal
4165778158.7911
Surface area
5.2061123004783E+19
Volume
2.5558974366354E+28
Space diagonal
5102015435.3345
Perimeter
8836949955
Area
3.7571879226407E+18
Altitude
2551007717.6673
Surface area
3.7571879226407E+18
Volume
3.0121540157703E+27
Height
1388592719.597