Properties of the Number 492

Four Hundred Ninety-Two

Basics

Value: 491 → 492 → 493

Parity: even

Prime: No

Previous Prime: 491

Next Prime: 499

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 41

Divisors: 1, 2, 3, 4, 6, 12, 41, 82, 123, 164

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111101100

Octal: 754

Duodecimal: 350

Hexadecimal: 1ec

Square: 242064

Square Root: 22.181073012818835

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 partitions of n into parts each of which is used a different number of times. A98859

Refactorable numbers: number of divisors of k divides k. Also known as τ numbers. A33950

Numbers that are the sum of 2 successive primes. A1043

Number of positive subset sums of integer partitions of n. A276024

Sum of remainders of n mod k, for k = 1, 2, 3, ..., n. A4125

Partial sums of A243980. A244050

Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of the Fibonacci self-fusion matrix (A202453). A202605

Number of partitions of n into parts having a common factor. A18783

Numbers m such that ∑_k=1..m (<1/2 + k·r> - <k·r>) = 0, where r=sqrt(2) and < > denotes fractional part. A194368

Number of points on surface of cuboctahedron (or icosahedron): a(0) = 1; for n > 0, a(n) = 10n² + 2. Also coordination sequence for f.c.c. or A₃ or D₃ lattice. A5901