257430 is an even 6-digits composite number following 257429
and preceding 257431 . In scientific notation, it is written as 2.57430 × 10^5.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 68640 positive integers (up to 257430) that are relatively prime to 257430.
257430 has 8 divisors, whose sum is 411936
The reverse of 257430 is 034752
Previous prime number is 15
Is Prime? no
Number parity even
Number length 6
Sum of Digits 21
Digital Root 3
Name
two hundred fifty-seven thousand four hundred thirty
Scientific notation
2.57430 × 10^5
Engineering notation
2.57430 × 10^3
Prime Factorization
2 × 15 × 8581
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
257430
Product of the distinct prime numbers
The prime factorization of 257430 is 2 × 15 × 8581.
Since it has a total of 3 prime factors.
1 , 8 , 29 , 52 , 766 , 49 , 4701 , 2072 , 43999 , 69576 , 711132 , 661693 , 7919077 , 284712 , 93252501 , 88876567 , 786247429 , 142727509 , 4341729539 , 1488801944
n×2
514860
n×3
772290
n×4
1029720
n×5
1287150
n÷2
128715
n÷3
85810
n÷3
64357.5
n÷5
51486
n2
66270204900
n3
17059938847407000
n4
4.391740057488E+21
n5
1.1305656429991E+27
2 √n
507.37560051701
3 √n
63.614050928221
4 √n
22.524999456537
5 √n
12.081805261203
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-257429
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 257430 can be divided by 8 positive divisors.
The sum of these divisors (counting 257430) is 1, the average is 0.125.
Base
System
Value
2
Binary
111110110110010110
3
Ternary
111002010110
4
Quaternary
332312112
5
Quinary
31214210
6
Senary
5303450
8
Octal
766626
10
Decimal
257430
12
Duodecimal
104b86
16
Hexadecimal
3ed96
20
Vigesimal
1c3ba
36
Base36
5imu
md5
e3b761516238e178b63973ef4378ac6b
sha1
c35c46079532f6db4a2b27eb735800550fa46072
sha256
585dcd485817b1b4d520ebb6253ac27989fe968027f0f173541d3b3aff3f41a7
sha512
0b4f82df783c4ce32407aa796f91ab69b8e0cb653b1792e85a8f11b491bb846c0894a2d70d54074df42248427d07136d10849f42a14928e87cad95da4138919e
ripemd-160
d1a2fbea6ec8572a094578074feb5cc30f3a0986
Diameter
514860
Circumference
1617480.3936272
Area
208193988865.73
Volume
7.1460504738273E+16
Surface area
832775955462.92
Circumference
1617480.3936272
Perimeter
1029720
Area
66270204900
Diagonal
364060.99736171
Surface area
397621229400
Volume
17059938847407000
Space diagonal
445881.83939246
Perimeter
772290
Area
28695840478.7
Altitude
222940.91969623
Surface area
28695840478.7
Volume
2.0105330742716E+15
Height
121353.66578724