668889615 is an odd 9-digits composite number following 668889614
and preceding 668889616 . In scientific notation, it is written as 6.68889615 × 10^8.
The sum of its digits is 57. It has a total of 4 prime factors and 16 positive divisors.
There are 355139616 positive integers (up to 668889615) that are relatively prime to 668889615.
668889615 has 16 divisors, whose sum is 1075027968
The reverse of 668889615 is 516988866
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 57
Digital Root 3
Name
six hundred sixty-eight million eight hundred eighty-nine thousand six hundred fifteen
Scientific notation
6.68889615 × 10^8
Engineering notation
6.68889615 × 10^6
Prime Factorization
5 × 223 × 3 × 199967
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
668889615
Product of the distinct prime numbers
The prime factorization of 668889615 is 5 × 223 × 3 × 199967.
Since it has a total of 4 prime factors.
9 , 10 , 32 , 61 , 18 , 7 , 5477 , 3641 , 9577 , 49071 , 958543 , 517048 , 3677883 , 5108027 , 15604802 , 75469190 , 431037009 , 266387077 , 9149882282 , 6282751973
n×2
1337779230
n×3
2006668845
n×4
2675558460
n×5
3344448075
n÷2
334444807.5
n÷3
222963205
n÷3
167222403.75
n÷5
133777923
n2
447413317054848225
n3
2.9927012139069E+26
n4
2.0017867627802E+35
n5
1.3389743770682E+44
2 √n
25862.900359395
3 √n
874.55034965078
4 √n
160.81946511351
5 √n
58.219824325969
1 , 3 , 5 , 15 , 223 , 669 , 1115 , 3345 , 199967 , 599901 , 999835 , 2999505 , 44592641 , 133777923 , 222963205 , 668889615
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
-668889614
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 668889615 can be divided by 16 positive divisors.
The sum of these divisors (counting 668889615) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111110111100111001000001111
3
Ternary
1201121122010001110
4
Quaternary
213313213020033
5
Quinary
2332213431430
6
Senary
150212343103
8
Octal
4767471017
10
Decimal
668889615
12
Duodecimal
168014a93
16
Hexadecimal
27de720f
20
Vigesimal
a90b40f
36
Base36
b28mj3
md5
d65a15c3454769d6f4e12e550493fd6f
sha1
9a5fa7c1e7eec64859fd891426d6e6460deff44c
sha256
889acef6477da82a317557d3419bce3fa5642de0093b71f8f85160b8ac3f5b7e
sha512
10b1ad678c85295e9eaf9560642781363b8d98e924ba832d69720ddf5f2a60a5755cce6593b42840cd446fad90f0eac3987c483440399c20a6abcd764c511c3e
ripemd-160
bcd761f76d3d064aa88ed8d5204fb6a19a536ce2
Diameter
1337779230
Circumference
4202757401.093
Area
1.4055903899778E+18
Volume
1.2535797530666E+27
Surface area
5.622361559911E+18
Circumference
4202757401.093
Perimeter
2675558460
Area
447413317054848225
Diagonal
945952765.26352
Surface area
2684479902329089350
Volume
2.9927012139069E+26
Space diagonal
1158550797.8352
Perimeter
2006668845
Area
1.9373564928048E+17
Altitude
579275398.91759
Surface area
1.9373564928048E+17
Volume
3.5269322040313E+25
Height
315317588.42117