257421 (number)

257421 is an odd 6-digits composite number following 257420 and preceding 257422. In scientific notation, it is written as 2.57421 × 10^5. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 168272 positive integers (up to 257421) that are relatively prime to 257421.

Interesting facts

Basic properties

Name

Name two hundred fifty-seven thousand four hundred twenty-one

Notation

Scientific notation 2.57421 × 10^5
Engineering notation 2.57421 × 10^3

Prime Factorization of 257421

Prime Factorization 3 × 1619 × 53

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 257421
Product of the distinct prime numbers

The prime factorization of 257421 is 3 × 1619 × 53. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 257421)

Multiplication

n×y
n×2 514842
n×3 772263
n×4 1029684
n×5 1287105

Division

n÷y
n÷2 128710.5
n÷3 85807
n÷3 64355.25
n÷5 51484.2

Exponentiation

ny
n2 66265571241
n3 17058149614429461
n4 4.391125931896E+21
n5 1.1303680285146E+27

Nth Root

y√n
2√n 507.36673127039
3√n 63.613309583479
4√n 22.524802580054
5√n 12.081720781719

Divisors of 257421

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 -257420
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 257421 can be divided by 8 positive divisors. The sum of these divisors (counting 257421) is 1, the average is 0.125.

Base conversion 257421

Base System Value
2 Binary 111110110110001101
3 Ternary 111002010010
4 Quaternary 332312031
5 Quinary 31214141
6 Senary 5303433
8 Octal 766615
10 Decimal 257421
12 Duodecimal 104b79
16 Hexadecimal 3ed8d
20 Vigesimal 1c3b1
36 Base36 5iml

Cryptographic Hash Functions

md5 e0eec4afa8ab3236c032068920f81d60
sha1 fc33278c4954fc3bb22e5d915435ece5738487b8
sha256 5175d0f7d9a56a4062dd86b5ef5dcb091470cda5ddccd6b709bf9df1eaafe1f5
sha512 dad8082ec9dfd3624795a3e279065536520ae032de5e0204312856b40da87bb9ea28135ee9ed6f369b732319b391b89248c02903f8fc5a3102b59cb3ba6aa0c2
ripemd-160 bcd2dd3eea1962e93797860035d29537f49a6147

257421 as geometric shapes

Circle

Radius = n
Diameter 514842
Circumference 1617423.8449595
Area 208179431796.66

Sphere

Radius = n
Volume 7.1453010016703E+16
Surface area 832717727186.63
Circumference 1617423.8449595

Square

Length = n
Perimeter 1029684
Area 66265571241
Diagonal 364048.26943964

Cube

Length = n
Surface area 397593427446
Volume 17058149614429461
Space diagonal 445866.25093519

Equilateral Triangle

Length = n
Perimeter 772263
Area 28693834045.497
Altitude 222933.12546759

Triangular Pyramid

Length = n
Surface area 28693834045.497
Volume 2.010322211143E+15
Height 121349.42314655