Properties of the Number 74142

Seventy-Four Thousand One Hundred Forty-Two

Basics

Value: 74141 → 74142 → 74143

Parity: even

Prime: No

Previous Prime: 74131

Next Prime: 74143

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 1373

Divisors: 1, 2, 3, 6, 9, 18, 27, 54, 1373, 2746

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010000110011110

Octal: 220636

Duodecimal: 36AA6

Hexadecimal: 1219e

Square: 5497036164

Square Root: 272.2902862755115

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

Numbers k divisible by at least one nontrivial permutation (rearrangement) of the digits of k, excluding all permutations that result in digit loss. A90056

Index of smallest prime number where n consecutive leading digits of the index match n consecutive leading digits in the prime. A133583

Primes associated with the indices in A133583. A133584

Number of (n+1)X3 0..3 arrays with every 2X2 subblock having nonzero determinant and having the same number of clockwise edge increases as its horizontal and vertical neighbors. A205762

The Wiener index of the dendrimer D₄[n], defined pictorially in the A. R. Ashrafi et al. reference. A227484

a(n) is the coefficient of xⁿ in x/(1 + ∑_k>=1 (1/2)*(prime(k+1) - 1)*x^k). A74142