639492091 is an odd 9-digits composite number following 639492090
and preceding 639492092 . In scientific notation, it is written as 6.39492091 × 10^8.
The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors.
There are 538843200 positive integers (up to 639492091) that are relatively prime to 639492091.
639492091 has 12 divisors, whose sum is 756510840
The reverse of 639492091 is 190294936
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 43
Digital Root 7
Name
six hundred thirty-nine million four hundred ninety-two thousand ninety-one
Scientific notation
6.39492091 × 10^8
Engineering notation
6.39492091 × 10^6
Prime Factorization
59 × 7 × 7 × 221201
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
91356013
Product of the distinct prime numbers
The prime factorization of 639492091 is 59 × 7 × 7 × 221201.
Since it has a total of 4 prime factors.
3 , 9 , 73 , 83 , 193 , 385 , 7155 , 4200 , 33942 , 11330 , 841865 , 781521 , 400279 , 9824533 , 53982105 , 1535420 , 758876095 , 729735049 , 3023499995 , 8150303155
n×2
1278984182
n×3
1918476273
n×4
2557968364
n×5
3197460455
n÷2
319746045.5
n÷3
213164030.33333
n÷3
159873022.75
n÷5
127898418.2
n2
408950134451552281
n3
2.6152037659515E+26
n4
1.6724021246794E+35
n5
1.0694879317041E+44
2 √n
25288.180855886
3 √n
861.54584551965
4 √n
159.02257970454
5 √n
57.698833823951
1 , 7 , 49 , 59 , 413 , 2891 , 221201 , 1548407 , 10838849 , 13050859 , 91356013 , 639492091
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
-639492090
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 639492091 can be divided by 12 positive divisors.
The sum of these divisors (counting 639492091) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110000111011101111111111011
3
Ternary
1122120022120020021
4
Quaternary
212013131333323
5
Quinary
2302202221331
6
Senary
143242311311
8
Octal
4607357773
10
Decimal
639492091
12
Duodecimal
15a1b8537
16
Hexadecimal
261ddffb
20
Vigesimal
9jgga4b
36
Base36
akqj97
md5
3b50117f1f4770e971b53a7d5903f725
sha1
9f920612f849c9c14af0dc3a3c9641f757331488
sha256
b79731c15b3e79c7ec475d0537cba0902014c017b9a0a9007f6c38b39a2e7617
sha512
2f18e3685f1b0a1c2d974674618024cb39c122551a9c9d1c127fcf6fb671c52668b3e4a5a4aa873958e91c6c0c8e44f24da5fb910345b03fa9552532d941d238
ripemd-160
93c44b07442aa226b91d06ae2b4091d695b505a4
Diameter
1278984182
Circumference
4018047310.2288
Area
1.2847547380776E+18
Volume
1.0954539918338E+27
Surface area
5.1390189523102E+18
Circumference
4018047310.2288
Perimeter
2557968364
Area
408950134451552281
Diagonal
904378388.12253
Surface area
2453700806709313686
Volume
2.6152037659515E+26
Space diagonal
1107632792.6505
Perimeter
1918476273
Area
1.7708060265805E+17
Altitude
553816396.32523
Surface area
1.7708060265805E+17
Volume
3.0820471951482E+25
Height
301459462.70751