668889731 is an odd 9-digits prime number following 668889730
and preceding 668889732 . In scientific notation, it is written as 6.68889731 × 10^8.
The sum of its digits is 56. It has a total of 1 prime factors and 2 positive divisors.
There are 668889730 positive integers (up to 668889731) that are relatively prime to 668889731.
668889731 has 2 divisors, whose sum is 668889732
The reverse of 668889731 is 137988866
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 56
Digital Root 2
Name
six hundred sixty-eight million eight hundred eighty-nine thousand seven hundred thirty-one
Scientific notation
6.68889731 × 10^8
Engineering notation
6.68889731 × 10^6
Prime Factorization
668889731
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
668889731
Product of the distinct prime numbers
The prime factorization of 668889731 is 668889731.
Since it has a total of 1 prime factors.
3 , 3 , 64 , 47 , 963 , 470 , 7523 , 3765 , 81235 , 29773 , 224491 , 92108 , 8731317 , 6344399 , 32657158 , 87304509 , 219697752 , 571666027 , 6520081153 , 4439416096
n×2
1337779462
n×3
2006669193
n×4
2675558924
n×5
3344448655
n÷2
334444865.5
n÷3
222963243.66667
n÷3
167222432.75
n÷5
133777946.2
n2
447413472237252361
n3
2.9927027709055E+26
n4
2.0017881513939E+35
n5
1.3389755381049E+44
2 √n
25862.90260199
3 √n
874.55040020613
4 √n
160.81947208591
5 √n
58.219826345286
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
668889732
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
334444866
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
25862.902621322
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.99999999701
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 668889731 can be divided by 2 positive divisors.
The sum of these divisors (counting 668889731) is 668889732, the average is 334444866.
Base
System
Value
2
Binary
100111110111100111001010000011
3
Ternary
1201121122010012202
4
Quaternary
213313213022003
5
Quinary
2332213432411
6
Senary
150212343415
8
Octal
4767471203
10
Decimal
668889731
12
Duodecimal
168014b6b
16
Hexadecimal
27de7283
20
Vigesimal
a90b46b
36
Base36
b28mmb
md5
10e511ead0a9610f743291c859e42493
sha1
fd05fd7779c1d9e5ae7ba74e5d27f1bc04d33d29
sha256
980b6145ed59f2f3908c56aa0e2ebc009ab5da7f6a9f895cc2e5bb1ee6360d31
sha512
523dc30c2bd68891a75e682f7fe968993e853a71bfcc584e154f145a8e19d0307bfa9d35ca9d3fce7955d6454cafbe74a4575eee150be20f53745b526228faef
ripemd-160
d4ca425845973e063e327c9ac975c82ab42bb727
Diameter
1337779462
Circumference
4202758129.9425
Area
1.4055908774977E+18
Volume
1.2535804052606E+27
Surface area
5.6223635099906E+18
Circumference
4202758129.9425
Perimeter
2675558924
Area
447413472237252361
Diagonal
945952929.31229
Surface area
2684480833423514166
Volume
2.9927027709055E+26
Space diagonal
1158550998.7531
Perimeter
2006669193
Area
1.9373571647643E+17
Altitude
579275499.37654
Surface area
1.9373571647643E+17
Volume
3.5269340389718E+25
Height
315317643.1041