668749 is an odd 6-digits composite number following 668748
and preceding 668750 . In scientific notation, it is written as 6.68749 × 10^5.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 659260 positive integers (up to 668749) that are relatively prime to 668749.
668749 has 4 divisors, whose sum is 678240
The reverse of 668749 is 947866
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 40
Digital Root 4
Name
six hundred sixty-eight thousand seven hundred forty-nine
Scientific notation
6.68749 × 10^5
Engineering notation
6.68749 × 10^3
Prime Factorization
71 × 9419
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
668749
Product of the distinct prime numbers
The prime factorization of 668749 is 71 × 9419.
Since it has a total of 2 prime factors.
4 , 4 , 60 , 31 , 570 , 676 , 3148 , 5483 , 90148 , 13742 , 915840 , 657693 , 85730 , 636644 , 91379221 , 86616476 , 476836135 , 752987578 , 7060817566 , 2618037269
n×2
1337498
n×3
2006247
n×4
2674996
n×5
3343745
n÷2
334374.5
n÷3
222916.33333333
n÷3
167187.25
n÷5
133749.8
n2
447225225001
n3
299081421994193749
n4
2.000104018772E+23
n5
1.3375675624497E+29
2 √n
817.77075027174
3 √n
87.448906225099
4 √n
28.596691246921
5 √n
14.623543762608
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-668748
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 668749 can be divided by 4 positive divisors.
The sum of these divisors (counting 668749) is 1, the average is 0.25.
Base
System
Value
2
Binary
10100011010001001101
3
Ternary
1020222100111
4
Quaternary
2203101031
5
Quinary
132344444
6
Senary
22200021
8
Octal
2432115
10
Decimal
668749
12
Duodecimal
283011
16
Hexadecimal
a344d
20
Vigesimal
43bh9
36
Base36
ec0d
md5
06fcd40ba8c35186243fa1035c653353
sha1
d00df3cb988e06bc939054374c4459537d110b74
sha256
22315a8a7bf048bc994f3b6d3cb48aa3db93c01e0fbfa39f5015ed63732fff21
sha512
a799f56afed367116ab6d7c5ad2a11d66a4eab8e13231983744485cdfff9cb13c80471115bf182429ec448709663aae061507fb765f17368a01865bc9ac1aafe
ripemd-160
5546f4896da95090a5da8ca93ca43d41ade042f9
Diameter
1337498
Circumference
4201873.890991
Area
1404999481363.2
Volume
1.2527893308829E+18
Surface area
5619997925452.7
Circumference
4201873.890991
Perimeter
2674996
Area
447225225001
Diagonal
945753.90562345
Surface area
2683351350006
Volume
299081421994193749
Space diagonal
1158307.2455109
Perimeter
2006247
Area
193654203032.04
Altitude
579153.62275544
Surface area
193654203032.04
Volume
3.5247083603168E+16
Height
315251.30187448