640968401 is an odd 9-digits composite number following 640968400
and preceding 640968402 . In scientific notation, it is written as 6.40968401 × 10^8.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 607233204 positive integers (up to 640968401) that are relatively prime to 640968401.
640968401 has 4 divisors, whose sum is 674703600
The reverse of 640968401 is 104869046
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
six hundred forty million nine hundred sixty-eight thousand four hundred one
Scientific notation
6.40968401 × 10^8
Engineering notation
6.40968401 × 10^6
Prime Factorization
19 × 33735179
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
640968401
Product of the distinct prime numbers
The prime factorization of 640968401 is 19 × 33735179.
Since it has a total of 2 prime factors.
4 , 6 , 21 , 40 , 874 , 658 , 8516 , 270 , 22355 , 37566 , 167801 , 127291 , 882430 , 1492258 , 88451876 , 62675435 , 279129383 , 692600097 , 7214918409 , 4729819817
n×2
1281936802
n×3
1922905203
n×4
2563873604
n×5
3204842005
n÷2
320484200.5
n÷3
213656133.66667
n÷3
160242100.25
n÷5
128193680.2
n2
410840491080496801
n3
2.6333577263392E+26
n4
1.6878990911126E+35
n5
1.0818899814798E+44
2 √n
25317.353751923
3 √n
862.20831461374
4 √n
159.11427890646
5 √n
57.725449576233
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
-640968400
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 640968401 can be divided by 4 positive divisors.
The sum of these divisors (counting 640968401) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110001101000110011011010001
3
Ternary
1122200002120100102
4
Quaternary
212031012123101
5
Quinary
2303041442101
6
Senary
143334102145
8
Octal
4615063321
10
Decimal
640968401
12
Duodecimal
15a7aa955
16
Hexadecimal
263466d1
20
Vigesimal
a061101
36
Base36
alm6dt
md5
b73368df24852fafba7d63c7932362a2
sha1
6bcfc1eb8d0c5dadaca815292ae55d87aea5ccf6
sha256
311771da8488dc5b7097ab90dd17faded53ec1569cfa0b92914ea78ad69f9eee
sha512
f4b88af61e0bc53da3485df0659395fe2acc31cf8d57ad3654383026d757e9b5e5757b37617ec8ac3f2dc675fe5d94d03f19f1d7359bbc93e98ea967ee481050
ripemd-160
234a72ba1041eb5db703544ed4427f5fcc36c205
Diameter
1281936802
Circumference
4027323239.5296
Area
1.2906934685757E+18
Volume
1.1030583049788E+27
Surface area
5.1627738743028E+18
Circumference
4027323239.5296
Perimeter
2563873604
Area
410840491080496801
Diagonal
906466205.7468
Surface area
2465042946482980806
Volume
2.6333577263392E+26
Space diagonal
1110189836.5782
Perimeter
1922905203
Area
1.7789915108949E+17
Altitude
555094918.28909
Surface area
1.7789915108949E+17
Volume
3.1034418426407E+25
Height
302155401.9156