Properties of the Number 57447

Fifty-Seven Thousand Four Hundred Forty-Seven

Basics

Value: 57446 → 57447 → 57448

Parity: odd

Prime: No

Previous Prime: 57427

Next Prime: 57457

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 13 × 491

Divisors: 1, 3, 9, 13, 39, 117, 491, 1473, 4419, 6383

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110000001100111

Octal: 160147

Duodecimal: 292B3

Hexadecimal: e067

Square: 3300157809

Square Root: 239.68103804848644

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

Triangle read by rows: T(n,k) is the number of Motzkin paths of length n and having k UHD's, where U=(1,1),H=(1,0),D=(1,-1) (0<=k<=floor(n/3)). A114583

Number of Motzkin paths of length n having no UHD's (U=(1,1), H=(1,0), D=(1,-1)). A114584

Number of nonnegative integer square matrices with sum of entries equal to n, no zero rows or columns, weakly decreasing row and column sums, and the same row sums as column sums. A321734

Number of 5-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero and first and second differences in -n..n. A209009

a(n+1) = next prime such that a(n+1)-1 | (a(1)...a(n))³. A57447

Primes p == 3 (mod 4) such that the multiplicative order of 2+-i modulo p in Gaussian integers (A385165) is odd. A385169

Odd multiplicative orders of 2+-i modulo primes p == 3 (mod 4). A385217