642744965 is an odd 9-digits composite number following 642744964
and preceding 642744966 . In scientific notation, it is written as 6.42744965 × 10^8.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 514195968 positive integers (up to 642744965) that are relatively prime to 642744965.
642744965 has 4 divisors, whose sum is 771293964
The reverse of 642744965 is 569447246
Previous prime number is 5
Is Prime? no Number parity odd Number length 9 Sum of Digits 47 Digital Root 2
Name
six hundred forty-two million seven hundred forty-four thousand nine hundred sixty-five
Scientific notation
6.42744965 × 10^8
Engineering notation
6.42744965 × 10^6
Prime Factorization
5 × 128548993
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
642744965 Product of the distinct prime numbers
The prime factorization of 642744965 is 5 × 128548993.
Since it has a total of 2 prime factors.
8 , 5 , 29 , 28 , 156 , 128 , 7207 , 9117 , 87622 , 58774 , 888086 , 299867 , 1935147 , 5034653 , 34211438 , 51927477 , 575989582 , 728261317 , 506711494 , 7747625684
n×2
1285489930
n×3
1928234895
n×4
2570979860
n×5
3213724825
n÷2
321372482.5
n÷3
214248321.66667
n÷3
160686241.25
n÷5
128548993
n2
413121090032851225
n3
2.6553150055393E+26
n4
1.7066903502993E+35
n5
1.096966629469E+44
2 √n25352.415368166
3 √n863.00417040047
4 √n159.2244182535
5 √n57.757413537721
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
-642744964 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 642744965 can be divided by 4 positive divisors.
The sum of these divisors (counting 642744965) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110010011111000001010000101
3
Ternary
1122210102211100002
4
Quaternary
212103320022011
5
Quinary
2304020314330
6
Senary
143440131045
8
Octal
4623701205
10
Decimal
642744965
12
Duodecimal
15b306a85
16
Hexadecimal
264f8285
20
Vigesimal
a0h3285
36
Base36
amo96t
md5
5d442068ee7db68d7ec850dc22e12312
sha1
a5a97f9900174cae44084f6f57a6d474d76f5b14
sha256
e2d49355782e3b8536cfad1891e1a4cbfa7efc16a96bc3076f2fa09c7a8f86a4
sha512
7c38176b71635fcfaca06667828ec2ad0791df4931bfa28c58f5dabe2e96f690419a8ef77b78dc81f4b8af51af1c654ee0f33ea363a8992ecab8f0a71d637226
ripemd-160
6b0ce9e26c1f335db421cfd690785923d3a23974
Diameter
1285489930
Circumference
4038485720.3517
Area
1.2978581814902E+18
Volume
1.1122557485825E+27
Surface area
5.1914327259609E+18
Circumference
4038485720.3517
Perimeter
2570979860
Area
413121090032851225
Diagonal
908978646.65002
Surface area
2478726540197107350
Volume
2.6553150055393E+26
Space diagonal
1113266935.6891
Perimeter
1928234895
Area
1.7888667940378E+17
Altitude
556633467.84454
Surface area
1.7888667940378E+17
Volume
3.1293187443387E+25
Height
302992882.21667