640996838 is an even 9-digits composite number following 640996837
and preceding 640996839 . In scientific notation, it is written as 6.40996838 × 10^8.
The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors.
There are 320498418 positive integers (up to 640996838) that are relatively prime to 640996838.
640996838 has 4 divisors, whose sum is 961495260
The reverse of 640996838 is 838699046
Previous prime number is 2
Is Prime? no Number parity even Number length 9 Sum of Digits 53 Digital Root 8
Name
six hundred forty million nine hundred ninety-six thousand eight hundred thirty-eight
Scientific notation
6.40996838 × 10^8
Engineering notation
6.40996838 × 10^6
Prime Factorization
2 × 320498419
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
640996838 Product of the distinct prime numbers
The prime factorization of 640996838 is 2 × 320498419.
Since it has a total of 2 prime factors.
8 , 10 , 76 , 17 , 693 , 967 , 6579 , 1446 , 61753 , 71424 , 643394 , 353518 , 8571450 , 5578635 , 78440413 , 4450534 , 347912999 , 499676789 , 4227452761 , 1397193963
n×2
1281993676
n×3
1922990514
n×4
2563987352
n×5
3204984190
n÷2
320498419
n÷3
213665612.66667
n÷3
160249209.5
n÷5
128199367.6
n2
410876946325998244
n3
2.6337082340206E+26
n4
1.6881986502218E+35
n5
1.082129996708E+44
2 √n25317.915356522
3 √n862.22106524503
4 √n159.11604368046
5 √n57.725961772927
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
-640996837 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 640996838 can be divided by 4 positive divisors.
The sum of these divisors (counting 640996838) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110001101001101010111100110
3
Ternary
1122200011000100122
4
Quaternary
212031031113212
5
Quinary
2303043344323
6
Senary
143334441542
8
Octal
4615152746
10
Decimal
640996838
12
Duodecimal
15a8032b2
16
Hexadecimal
2634d5e6
20
Vigesimal
a064c1i
36
Base36
almsbq
md5
93cafaa2e9fc3b3dbd782a9c4a84ed43
sha1
c7223aa54faf0c7da101e58aa57130e62e6ce844
sha256
da0467003b667492158db9e72174764ebd975880952b0736bd2b01d102779a9c
sha512
75310ca765ec45470e3e7a1191916bd4836e3f1aba349a8f262d4edadfcb20cea9246bd78ab6ae7af7617356afd55fcf60013beaf252f356c99e4b16eb95d540
ripemd-160
d49c5bcb7d34981afc8220b8be4888069d059b7e
Diameter
1281993676
Circumference
4027501914.4702
Area
1.2908079961072E+18
Volume
1.1032051252931E+27
Surface area
5.1632319844287E+18
Circumference
4027501914.4702
Perimeter
2563987352
Area
410876946325998244
Diagonal
906506421.73787
Surface area
2465261677955989464
Volume
2.6337082340206E+26
Space diagonal
1110239090.907
Perimeter
1922990514
Area
1.7791493667384E+17
Altitude
555119545.4535
Surface area
1.7791493667384E+17
Volume
3.1038549199047E+25
Height
302168807.24596