639778820 is an even 9-digits composite number following 639778819
and preceding 639778821 . In scientific notation, it is written as 6.39778820 × 10^8.
The sum of its digits is 50. It has a total of 4 prime factors and 12 positive divisors.
There are 255911520 positive integers (up to 639778820) that are relatively prime to 639778820.
639778820 has 12 divisors, whose sum is 1343535564
The reverse of 639778820 is 028877936
Previous prime number is 5
Is Prime? no Number parity even Number length 9 Sum of Digits 50 Digital Root 5
Name
six hundred thirty-nine million seven hundred seventy-eight thousand eight hundred twenty
Scientific notation
6.39778820 × 10^8
Engineering notation
6.39778820 × 10^6
Prime Factorization
2 × 2 × 5 × 31988941
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
319889410 Product of the distinct prime numbers
The prime factorization of 639778820 is 2 × 2 × 5 × 31988941.
Since it has a total of 4 prime factors.
2 , 10 , 25 , 7 , 553 , 534 , 4070 , 4991 , 8629 , 44305 , 567128 , 310615 , 2983969 , 5958432 , 70581994 , 68263203 , 133666492 , 880472519 , 7863394371 , 3208863788
n×2
1279557640
n×3
1919336460
n×4
2559115280
n×5
3198894100
n÷2
319889410
n÷3
213259606.66667
n÷3
159944705
n÷5
127955764
n2
409316938520592400
n3
2.6187230793272E+26
n4
1.6754035615987E+35
n5
1.0718877136634E+44
2 √n25293.849450015
3 √n861.67459001918
4 √n159.04040194245
5 √n57.704006980221
1 , 2 , 4 , 5 , 10 , 20 , 31988941 , 63977882 , 127955764 , 159944705 , 319889410 , 639778820
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-639778819 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 639778820 can be divided by 12 positive divisors.
The sum of these divisors (counting 639778820) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110001000100100000000000100
3
Ternary
1122120212010112212
4
Quaternary
212020210000010
5
Quinary
2302240410240
6
Senary
143252402552
8
Octal
4610440004
10
Decimal
639778820
12
Duodecimal
15a316458
16
Hexadecimal
26224004
20
Vigesimal
9jic710
36
Base36
akwohw
md5
9aa4dfa999aedf6f74376fdb0de25d66
sha1
f1a6c4e587ecdf1c385201b53e02234bde4f2e09
sha256
532c6eadd124d85dbb0cf1205bd3dbc85f84b8ff01625480a1a1581c8e0c7d6f
sha512
cee46e880c4db15ce15c992653d24e280964ba171e9b3831810b5db427a7cf6fdd9b347a8bb9b8d707eafa88e5b64e705a04df032296f11f8c35143ec8558853
ripemd-160
0f2602ee76521b76109a8de333aee6326eaafeb4
Diameter
1279557640
Circumference
4019848881.6687
Area
1.2859070870462E+18
Volume
1.0969281583734E+27
Surface area
5.1436283481846E+18
Circumference
4019848881.6687
Perimeter
2559115280
Area
409316938520592400
Diagonal
904783884.16306
Surface area
2455901631123554400
Volume
2.6187230793272E+26
Space diagonal
1108129421.8465
Perimeter
1919336460
Area
1.7723943347905E+17
Altitude
554064710.92323
Surface area
1.7723943347905E+17
Volume
3.0861947457366E+25
Height
301594628.05435