639492087 is an odd 9-digits composite number following 639492086
and preceding 639492088 . In scientific notation, it is written as 6.39492087 × 10^8.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 371952000 positive integers (up to 639492087) that are relatively prime to 639492087.
639492087 has 16 divisors, whose sum is 692848640
The reverse of 639492087 is 780294936
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 48
Digital Root 3
Name
six hundred thirty-nine million four hundred ninety-two thousand eighty-seven
Scientific notation
6.39492087 × 10^8
Engineering notation
6.39492087 × 10^6
Prime Factorization
39 × 31 × 43 × 12301
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
639492087
Product of the distinct prime numbers
The prime factorization of 639492087 is 39 × 31 × 43 × 12301.
Since it has a total of 4 prime factors.
8 , 10 , 16 , 9 , 597 , 794 , 5473 , 2159 , 3047 , 20048 , 95688 , 191842 , 1340143 , 2348948 , 54209899 , 8692937 , 141078940 , 371098958 , 9551770123 , 5312930666
n×2
1278984174
n×3
1918476261
n×4
2557968348
n×5
3197460435
n÷2
319746043.5
n÷3
213164029
n÷3
159873021.75
n÷5
127898417.4
n2
408950129335615569
n3
2.6152037168775E+26
n4
1.6724020828362E+35
n5
1.069487898256E+44
2 √n
25288.180776798
3 √n
861.54584372333
4 √n
159.02257945587
5 √n
57.69883375177
1 , 31 , 39 , 43 , 1209 , 1333 , 1677 , 12301 , 51987 , 381331 , 479739 , 528943 , 14871909 , 16397233 , 20628777 , 639492087
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-639492086
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 639492087 can be divided by 16 positive divisors.
The sum of these divisors (counting 639492087) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110000111011101111111110111
3
Ternary
1122120022120020010
4
Quaternary
212013131333313
5
Quinary
2302202221322
6
Senary
143242311303
8
Octal
4607357767
10
Decimal
639492087
12
Duodecimal
15a1b8533
16
Hexadecimal
261ddff7
20
Vigesimal
9jgga47
36
Base36
akqj93
md5
bfcce4d0b09a9230e284ef3cfb919fd9
sha1
baabb6222e8d756e2ee3f8c5b9b4e8f2b64f6eba
sha256
8766c787171c387c42d46f64b0027a31a1030ac431822d37130e7b82bb65ad63
sha512
54506d8e2abdc627e669a4194c28ffd274b2955285f9b75396ab4e9f0e8a71a5977c509b18e0584c1fd56b37bab3d6fd8e5eb0b629679b339d1ff8f0d6c573b7
ripemd-160
b5f501f3ea111041dd6bb024296bc7c43f655bf4
Diameter
1278984174
Circumference
4018047285.096
Area
1.2847547220054E+18
Volume
1.0954539712778E+27
Surface area
5.1390188880215E+18
Circumference
4018047285.096
Perimeter
2557968348
Area
408950129335615569
Diagonal
904378382.46568
Surface area
2453700776013693414
Volume
2.6152037168775E+26
Space diagonal
1107632785.7223
Perimeter
1918476261
Area
1.7708060044279E+17
Altitude
553816392.86113
Surface area
1.7708060044279E+17
Volume
3.0820471373139E+25
Height
301459460.82189