642759984 is an even 9-digits composite number following 642759983
and preceding 642759985 . In scientific notation, it is written as 6.42759984 × 10^8.
The sum of its digits is 54. It has a total of 6 prime factors and 20 positive divisors.
There are 214253280 positive integers (up to 642759984) that are relatively prime to 642759984.
642759984 has 20 divisors, whose sum is 1383719720
The reverse of 642759984 is 489957246
Previous prime number is 9
Is Prime? no
Number parity even
Number length 9
Sum of Digits 54
Digital Root 9
Name
six hundred forty-two million seven hundred fifty-nine thousand nine hundred eighty-four
Scientific notation
6.42759984 × 10^8
Engineering notation
6.42759984 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 9 × 4463611
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
80344998
Product of the distinct prime numbers
The prime factorization of 642759984 is 2 × 2 × 2 × 2 × 9 × 4463611.
Since it has a total of 6 prime factors.
5 , 6 , 12 , 81 , 115 , 910 , 7050 , 6021 , 23045 , 92997 , 936081 , 860950 , 9778651 , 8870058 , 46767412 , 39801739 , 241981713 , 588792782 , 8676272407 , 5414843871
n×2
1285519968
n×3
1928279952
n×4
2571039936
n×5
3213799920
n÷2
321379992
n÷3
214253328
n÷3
160689996
n÷5
128551996.8
n2
413140397031680256
n3
2.6555011498584E+26
n4
1.7068498765949E+35
n5
1.0970947993706E+44
2 √n
25352.711570954
3 √n
863.01089227793
4 √n
159.22534839326
5 √n
57.757683458307
1 , 2 , 4 , 8 , 9 , 16 , 18 , 36 , 72 , 144 , 4463611 , 8927222 , 17854444 , 35708888 , 40172499 , 71417776 , 80344998 , 160689996 , 321379992 , 642759984
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-642759983
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 642759984 can be divided by 20 positive divisors.
The sum of these divisors (counting 642759984) is 1, the average is 0.05.
Base
System
Value
2
Binary
100110010011111011110100110000
3
Ternary
1122210110120221100
4
Quaternary
212103323310300
5
Quinary
2304021304414
6
Senary
143440324400
8
Octal
4623736460
10
Decimal
642759984
12
Duodecimal
15b313700
16
Hexadecimal
264fbd30
20
Vigesimal
a0h4jj4
36
Base36
amoks0
md5
95c09b2f7289f8dc5f8e4fc46e3ea19e
sha1
23a45962aceffbcda0f7ad5c73b2761cf9d9bd40
sha256
5e45549d5b410d09bc3e7c52234e132c931aeb1949892ee49af8407b5e9bbbda
sha512
8d6b170ca71228242a4d6fa11a6ca5f868931d31b66f9fc0d1725967c210f36d87cd33456d9d6063f52c616fab149b278f83a3f3dde4673b520610f15a32f3fb
ripemd-160
a5a718eb91071f05eb3a77db20b9f82f6daf331a
Diameter
1285519968
Circumference
4038580087.5118
Area
1.2979188362159E+18
Volume
1.1123337205326E+27
Surface area
5.1916753448636E+18
Circumference
4038580087.5118
Perimeter
2571039936
Area
413140397031680256
Diagonal
908999886.72351
Surface area
2478842382190081536
Volume
2.6555011498584E+26
Space diagonal
1113292949.3602
Perimeter
1928279952
Area
1.7889503957951E+17
Altitude
556646474.68008
Surface area
1.7889503957951E+17
Volume
3.1295381175225E+25
Height
302999962.24117