639842968 is an even 9-digits composite number following 639842967
and preceding 639842969 . In scientific notation, it is written as 6.39842968 × 10^8.
The sum of its digits is 55. It has a total of 5 prime factors and 16 positive divisors.
There are 319402176 positive integers (up to 639842968) that are relatively prime to 639842968.
639842968 has 16 divisors, whose sum is 1201653000
The reverse of 639842968 is 869248936
Previous prime number is 619
Is Prime? no
Number parity even
Number length 9
Sum of Digits 55
Digital Root 1
Name
six hundred thirty-nine million eight hundred forty-two thousand nine hundred sixty-eight
Scientific notation
6.39842968 × 10^8
Engineering notation
6.39842968 × 10^6
Prime Factorization
2 × 2 × 2 × 619 × 129209
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
159960742
Product of the distinct prime numbers
The prime factorization of 639842968 is 2 × 2 × 2 × 619 × 129209.
Since it has a total of 5 prime factors.
3 , 5 , 62 , 45 , 453 , 40 , 7752 , 6383 , 2635 , 37760 , 399482 , 519582 , 698670 , 5470187 , 31257019 , 62475855 , 145005215 , 42013089 , 8980684963 , 8455260500
n×2
1279685936
n×3
1919528904
n×4
2559371872
n×5
3199214840
n÷2
319921484
n÷3
213280989.33333
n÷3
159960742
n÷5
127968593.6
n2
409399023699049024
n3
2.619510864199E+26
n4
1.6760756060573E+35
n5
1.0724251903721E+44
2 √n
25295.117473536
3 √n
861.70338791651
4 √n
159.04438837487
5 √n
57.705164082668
1 , 2 , 4 , 8 , 619 , 1238 , 2476 , 4952 , 129209 , 258418 , 516836 , 1033672 , 79980371 , 159960742 , 319921484 , 639842968
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
-639842967
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 639842968 can be divided by 16 positive divisors.
The sum of these divisors (counting 639842968) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110001000110011101010011000
3
Ternary
1122120222101112201
4
Quaternary
212020303222120
5
Quinary
2302244433333
6
Senary
143254015544
8
Octal
4610635230
10
Decimal
639842968
12
Duodecimal
15a3475b4
16
Hexadecimal
26233a98
20
Vigesimal
9jj0788
36
Base36
aky1zs
md5
f105590e251110cd36e7329f956533ca
sha1
0c27b3d196069d7780f4b34665e6a88798be08ec
sha256
6fe6f1eed4b553770845f04a7dfa4cdc5a99aeeffb90761301b033acfa31469d
sha512
b7bb96df80b485704ce02c96b142b8495662540de5c0917d06451f7b0626a67a0e1bec7eeaeb005e5fd4b5488ab84cc9acf78eee7f5a6d56818f25321ab250f7
ripemd-160
02cebe37f34ba8f8de83a519be38f1f1caf60b22
Diameter
1279685936
Circumference
4020251935.4398
Area
1.2861649652398E+18
Volume
1.0972581449288E+27
Surface area
5.1446598609591E+18
Circumference
4020251935.4398
Perimeter
2559371872
Area
409399023699049024
Diagonal
904874603.13465
Surface area
2456394142194294144
Volume
2.619510864199E+26
Space diagonal
1108240529.4417
Perimeter
1919528904
Area
1.7727497740396E+17
Altitude
554120264.72083
Surface area
1.7727497740396E+17
Volume
3.0871231591116E+25
Height
301624867.71155