Properties of the Number 57213

Fifty-Seven Thousand Two Hundred Thirteen

Basics

Value: 57212 → 57213 → 57214

Parity: odd

Prime: No

Previous Prime: 57203

Next Prime: 57221

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 13 × 163

Divisors: 1, 3, 9, 13, 27, 39, 117, 163, 351, 489

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101111101111101

Octal: 157575

Duodecimal: 29139

Hexadecimal: df7d

Square: 3273327369

Square Root: 239.19239118333175

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

a(n) is the minimal permanent of an n X n Hermitian Toeplitz matrix using all the integers 1, 2, ..., n and with all off-diagonal elements purely imaginary. A359616

Number of binary strings of length n with no substrings equal to 0001 0100 or 1101. A164467

Triangle: Number of asymmetric quasigroups of order n with k idempotents. A58176

Second term of continued fraction for exp(n). A57213