Properties of the Number 20496

Twenty Thousand Four Hundred Ninety-Six

Basics

Value: 20495 → 20496 → 20497

Parity: even

Prime: No

Previous Prime: 20483

Next Prime: 20507

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ⁴ × 3 × 7 × 61

Divisors: 1, 2, 3, 4, 6, 7, 8, 12, 14, 16

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101000000010000

Octal: 50020

Duodecimal: BA40

Hexadecimal: 5010

Square: 420086016

Square Root: 143.16424134538624

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

Coefficients in a q-analog of the LambertW function, as a triangle read by rows. A152290

Numbers containing only 1's and 0's in their base-2, base-3, and base-4 representations. A258981

Square array T(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of e.g.f. exp(x^k * (exp(x) - 1)). A292892

Expansion of e.g.f. exp(x³ * (exp(x) - 1)). A292891

3-admirable numbers: 3-abundant numbers (A068403) k such that exists a proper divisor d of k such that σ(k) - 2·d = 3·k, where σ(k) is the sum of divisors of k (A000203). A329189

Numbers k such that (σ(k) - k) AND 2·k = 2·k, where AND is bitwise-and, A004198. A388024

Expansion of 1/((1-2x)*(1-4x)*(1-10x)). A16292

Output of the linear congruential pseudo-random number generator used in function rand() as described in Kernighan and Ritchie, when seeded with 0. A96554

Numbers n such that n⁶ + 545 is prime. A163592

Number of distinct lines passing through at least two points in a triangular grid of side n. A244504