Properties of the Number 54166

Fifty-Four Thousand One Hundred Sixty-Six

Basics

Value: 54165 → 54166 → 54167

Parity: even

Prime: No

Previous Prime: 54163

Next Prime: 54167

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 7 × 53 × 73

Divisors: 1, 2, 7, 14, 53, 73, 106, 146, 371, 511

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101001110010110

Octal: 151626

Duodecimal: 2741A

Hexadecimal: d396

Square: 2933955556

Square Root: 232.73590182866073

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

∑_k<=n (σ(k)²), where σ(k) denotes the sum of the divisors of k A000203. A72379

Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite CLO = Cloverite starting with a T5 atom. A18999

a(0) = 10; for n>0, a(n) is determined by the rule that the concatenation of the leading terms of the difference triangle is the same as the concatenation of the digits of the sequence, with a one-digit delay between the two concatenations. A309357

Number of positive integers <= 2ⁿ of form 3 x² + 9 y². A54166

a(n) is the smallest composite k such that ∑_{composites j = 4, ..., k} 1/j exceeds n/2. A331930