668897128 is an even 9-digits composite number following 668897127
and preceding 668897129 . In scientific notation, it is written as 6.68897128 × 10^8.
The sum of its digits is 55. It has a total of 5 prime factors and 16 positive divisors.
There are 316845936 positive integers (up to 668897128) that are relatively prime to 668897128.
668897128 has 16 divisors, whose sum is 1320192000
The reverse of 668897128 is 821798866
Previous prime number is 19
Is Prime? no
Number parity even
Number length 9
Sum of Digits 55
Digital Root 1
Name
six hundred sixty-eight million eight hundred ninety-seven thousand one hundred twenty-eight
Scientific notation
6.68897128 × 10^8
Engineering notation
6.68897128 × 10^6
Prime Factorization
2 × 2 × 2 × 19 × 4400639
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
167224282
Product of the distinct prime numbers
The prime factorization of 668897128 is 2 × 2 × 2 × 19 × 4400639.
Since it has a total of 5 prime factors.
1 , 2 , 78 , 10 , 557 , 1000 , 6803 , 5078 , 60759 , 15425 , 668510 , 66511 , 1769376 , 7798213 , 21966632 , 60589258 , 941554255 , 682479025 , 8442689930 , 7779613262
n×2
1337794256
n×3
2006691384
n×4
2675588512
n×5
3344485640
n÷2
334448564
n÷3
222965709.33333
n÷3
167224282
n÷5
133779425.6
n2
447423367846648384
n3
2.9928020575271E+26
n4
2.0018767009524E+35
n5
1.3390495758772E+44
2 √n
25863.045605651
3 √n
874.55362396891
4 √n
160.81991669458
5 √n
58.219955110949
1 , 2 , 4 , 8 , 19 , 38 , 76 , 152 , 4400639 , 8801278 , 17602556 , 35205112 , 83612141 , 167224282 , 334448564 , 668897128
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
-668897127
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 668897128 can be divided by 16 positive divisors.
The sum of these divisors (counting 668897128) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111110111101000111101101000
3
Ternary
1201121122111100201
4
Quaternary
213313220331220
5
Quinary
2332214202003
6
Senary
150212441544
8
Octal
4767507550
10
Decimal
668897128
12
Duodecimal
1680192b4
16
Hexadecimal
27de8f68
20
Vigesimal
a90c2g8
36
Base36
b28sbs
md5
71b9a5ba38ea00594e723f65df42bdac
sha1
86ab6e8c8744f3fb24f87010c14ee52b2b5a80d8
sha256
9a58fb1cfd2e6fd2873367589bea71aad55bfcbd277270a691fda66f73d5561f
sha512
1965b7b0cc0f73ec948eb40fdb71b4fd85a8519102940f9bfb306ac3bae4c230b4f6d34b8abd7e7ade8f10de3fed9e8da9fbd6f0dccf37ce8437687224fc0000
ripemd-160
9e63999f37087098b765f01c00c6312fd3020e9f
Diameter
1337794256
Circumference
4202804606.6642
Area
1.4056219654714E+18
Volume
1.2536219943434E+27
Surface area
5.6224878618857E+18
Circumference
4202804606.6642
Perimeter
2675588512
Area
447423367846648384
Diagonal
945963390.25001
Surface area
2684540207079890304
Volume
2.9928020575271E+26
Space diagonal
1158563810.7329
Perimeter
2006691384
Area
1.9374000140099E+17
Altitude
579281905.36645
Surface area
1.9374000140099E+17
Volume
3.5270510493774E+25
Height
315321130.08334