645048906 is an even 9-digits composite number following 645048905
and preceding 645048907 . In scientific notation, it is written as 6.45048906 × 10^8.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 214974144 positive integers (up to 645048906) that are relatively prime to 645048906.
645048906 has 16 divisors, whose sum is 1290350784
The reverse of 645048906 is 609840546
Previous prime number is 8647
Is Prime? no
Number parity even
Number length 9
Sum of Digits 42
Digital Root 6
Name
six hundred forty-five million forty-eight thousand nine hundred six
Scientific notation
6.45048906 × 10^8
Engineering notation
6.45048906 × 10^6
Prime Factorization
2 × 3 × 8647 × 12433
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
645048906
Product of the distinct prime numbers
The prime factorization of 645048906 is 2 × 3 × 8647 × 12433.
Since it has a total of 4 prime factors.
4 , 4 , 99 , 66 , 999 , 179 , 3196 , 9250 , 65746 , 88718 , 755187 , 633941 , 9708400 , 222784 , 98012942 , 28320299 , 740594289 , 175900523 , 8851070986 , 6691229907
n×2
1290097812
n×3
1935146718
n×4
2580195624
n×5
3225244530
n÷2
322524453
n÷3
215016302
n÷3
161262226.5
n÷5
129009781.2
n2
416088091131796836
n3
2.6839716798419E+26
n4
1.731292995817E+35
n5
1.1167686529172E+44
2 √n
25397.813016085
3 √n
864.0340966268
4 √n
159.36691317863
5 √n
57.798760974908
1 , 2 , 3 , 6 , 8647 , 12433 , 17294 , 24866 , 25941 , 37299 , 51882 , 74598 , 107508151 , 215016302 , 322524453 , 645048906
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
-645048905
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 645048906 can be divided by 16 positive divisors.
The sum of these divisors (counting 645048906) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110011100101010101001001010
3
Ternary
1122221202212202020
4
Quaternary
212130222221022
5
Quinary
2310113031111
6
Senary
144001345310
8
Octal
4634525112
10
Decimal
645048906
12
Duodecimal
160038236
16
Hexadecimal
2672aa4a
20
Vigesimal
a1bb256
36
Base36
ao1mx6
md5
c488f737b7001e9382a9dd350c4f2bec
sha1
5588bfdd0ab0b55142eb8b10a72e9274cc2713b1
sha256
03bfa61c3d3ba9e56570f562bb1ef956e4bd77fa435e2c14021ebd7b4f03bc57
sha512
7c075a4616b3740bafe937512b3d31068126aa0ccbcd3447f9af66d4a0ed13053190fb4f89494660294f83e124e4a921d181854e0a840907a951b3d46a2d3e9b
ripemd-160
71e439c157f05fbcd270236ad774f36375cd28cb
Diameter
1290097812
Circumference
4052961808.5915
Area
1.3071792903459E+18
Volume
1.1242594282446E+27
Surface area
5.2287171613834E+18
Circumference
4052961808.5915
Perimeter
2580195624
Area
416088091131796836
Diagonal
912236911.25913
Surface area
2496528546790781016
Volume
2.6839716798419E+26
Space diagonal
1117257478.5587
Perimeter
1935146718
Area
1.8017142856616E+17
Altitude
558628739.27936
Surface area
1.8017142856616E+17
Volume
3.1630909588815E+25
Height
304078970.41971