Properties of the Number 57240

Fifty-Seven Thousand Two Hundred Forty

Basics

Value: 57239 → 57240 → 57241

Parity: even

Prime: No

Previous Prime: 57223

Next Prime: 57241

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ³ × 5 × 53

Divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101111110011000

Octal: 157630

Duodecimal: 29160

Hexadecimal: df98

Square: 3276417600

Square Root: 239.24882444852264

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Number of n-step mappings with 4 inputs. A5945

Positive numbers m such that m² - 1 divides 2^m - 1. A247219

Numbers i such that Fibonacci(i) is divisible by i, i+1, i+2, and i+3. A298685

Numbers k such that σ(k) divides k². A90777

Numbers with prime factorization p·q*r³*s³ (where p, q, r, s are distinct primes). A190108

Number of 4-cycles in the n-polygon diagonal intersection graph. A300552

Numbers k such that 2^k - 1 is divisible by (k-1). A87965

Numbers k such that k*(k+9) gives the concatenation of two numbers m and m-9. A116231

Positive numbers m such that m² - 1 divides 4^m - 1. A271842

a(n) = (n+1)*binomial(2n+2,n+1)-3·4ⁿ+binomial(2n,n). A112328