668857688 is an even 9-digits composite number following 668857687
and preceding 668857689 . In scientific notation, it is written as 6.68857688 × 10^8.
The sum of its digits is 62. It has a total of 5 prime factors and 16 positive divisors.
There are 334243168 positive integers (up to 668857688) that are relatively prime to 668857688.
668857688 has 16 divisors, whose sum is 1254804480
The reverse of 668857688 is 886758866
Previous prime number is 1877
Is Prime? no
Number parity even
Number length 9
Sum of Digits 62
Digital Root 8
Name
six hundred sixty-eight million eight hundred fifty-seven thousand six hundred eighty-eight
Scientific notation
6.68857688 × 10^8
Engineering notation
6.68857688 × 10^6
Prime Factorization
2 × 2 × 2 × 1877 × 44543
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
167214422
Product of the distinct prime numbers
The prime factorization of 668857688 is 2 × 2 × 2 × 1877 × 44543.
Since it has a total of 5 prime factors.
9 , 3 , 25 , 62 , 849 , 413 , 2056 , 8585 , 24524 , 92887 , 600357 , 600730 , 2060919 , 1816238 , 86450559 , 26134386 , 251695008 , 722316984 , 1837457996 , 3451800618
n×2
1337715376
n×3
2006573064
n×4
2675430752
n×5
3344288440
n÷2
334428844
n÷3
222952562.66667
n÷3
167214422
n÷5
133771537.6
n2
447370606796705344
n3
2.992272697412E+26
n4
2.0014045982565E+35
n5
1.3386548523424E+44
2 √n
25862.283116539
3 √n
874.53643494167
4 √n
160.81754604687
5 √n
58.219268533271
1 , 2 , 4 , 8 , 1877 , 3754 , 7508 , 15016 , 44543 , 89086 , 178172 , 356344 , 83607211 , 167214422 , 334428844 , 668857688
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
-668857687
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 668857688 can be divided by 16 positive divisors.
The sum of these divisors (counting 668857688) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111110111011111010101011000
3
Ternary
1201121120111020222
4
Quaternary
213313133111120
5
Quinary
2332211421223
6
Senary
150211535212
8
Octal
4767372530
10
Decimal
668857688
12
Duodecimal
167bba508
16
Hexadecimal
27ddf558
20
Vigesimal
a907448
36
Base36
b27xw8
md5
ace0e70e855a35cd62d224c8eaf4df92
sha1
c11cc7ecf9ac8826e2699c15e7fcf576782607bc
sha256
8a9a59eeb70a45ae9f206750d5555b5003ccae152f4f9d53eaf29f1583a4c98a
sha512
bb8d7a96d867964fd1708aabb24b75ceb5b24ca1ee4974f247080bce51afd6bc4f3ba84fd07ec02eb5d20f16b47bbcbb68b04d93d2b8eb6a1f2cff674000901e
ripemd-160
1b8894ddc7e48a1ce1d0ddd3243426ced4dd5388
Diameter
1337715376
Circumference
4202556797.8357
Area
1.4054562117445E+18
Volume
1.2534002564969E+27
Surface area
5.6218248469782E+18
Circumference
4202556797.8357
Perimeter
2675430752
Area
447370606796705344
Diagonal
945907613.66711
Surface area
2684223640780232064
Volume
2.992272697412E+26
Space diagonal
1158495498.6491
Perimeter
2006573064
Area
1.937171551962E+17
Altitude
579247749.32453
Surface area
1.937171551962E+17
Volume
3.526427192499E+25
Height
315302537.88904