645452009 is an odd 9-digits composite number following 645452008
and preceding 645452010 . In scientific notation, it is written as 6.45452009 × 10^8.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 644158020 positive integers (up to 645452009) that are relatively prime to 645452009.
645452009 has 4 divisors, whose sum is 646746000
The reverse of 645452009 is 900254546
Previous prime number is 499
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 35
Digital Root 8
Name
six hundred forty-five million four hundred fifty-two thousand nine
Scientific notation
6.45452009 × 10^8
Engineering notation
6.45452009 × 10^6
Prime Factorization
499 × 1293491
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
645452009
Product of the distinct prime numbers
The prime factorization of 645452009 is 499 × 1293491.
Since it has a total of 2 prime factors.
7 , 5 , 54 , 46 , 728 , 299 , 8874 , 5738 , 1802 , 52916 , 89543 , 381788 , 1749376 , 3976686 , 30746272 , 46101768 , 710900944 , 111113699 , 2188230855 , 4893967447
n×2
1290904018
n×3
1936356027
n×4
2581808036
n×5
3227260045
n÷2
322726004.5
n÷3
215150669.66667
n÷3
161363002.25
n÷5
129090401.8
n2
416608295922136081
n3
2.6890066156901E+26
n4
1.7356247223115E+35
n5
1.120262463886E+44
2 √n
25405.747558377
3 √n
864.21404278098
4 √n
159.39180517949
5 √n
57.80598307294
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
-645452008
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 645452009 can be divided by 4 positive divisors.
The sum of these divisors (counting 645452009) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110011110001101000011101001
3
Ternary
1122222112100200222
4
Quaternary
212132031003221
5
Quinary
2310213431014
6
Senary
144014135425
8
Octal
4636150351
10
Decimal
645452009
12
Duodecimal
1601b1575
16
Hexadecimal
2678d0e9
20
Vigesimal
a1e1a09
36
Base36
aoa9yh
md5
6df55e4fc7cd6f46a327bd4c5bce8ad9
sha1
851396e378a66d4299c59a3721fff6e41ee2303f
sha256
d9061975eb3953dcf5e7d7c14075614585afcb0b0061e5a15967977e6cc6b589
sha512
f43f5feb7a38346466e88c114ccde87237d4eea4b575096efe9a800b1fab60571e4a5eff1de6eabe103ab7ff35935f0af12a699b024026622eca227f4ad36324
ripemd-160
a5ddc2a20d2bd06635460cfad8d90c43f6f02eb2
Diameter
1290904018
Circumference
4055494579.4383
Area
1.3088135618935E+18
Volume
1.1263684572408E+27
Surface area
5.2352542475742E+18
Circumference
4055494579.4383
Perimeter
2581808036
Area
416608295922136081
Diagonal
912806984.98876
Surface area
2499649775532816486
Volume
2.6890066156901E+26
Space diagonal
1117955673.4354
Perimeter
1936356027
Area
1.8039668384796E+17
Altitude
558977836.7177
Surface area
1.8039668384796E+17
Volume
3.1690246876833E+25
Height
304268994.99625