Properties of the Number 4921

Four Thousand Nine Hundred Twenty-One

Basics

Value: 4920 → 4921 → 4922

Parity: odd

Prime: No

Previous Prime: 4919

Next Prime: 4931

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 7 × 19 × 37

Divisors: 1, 7, 19, 37, 133, 259, 703, 4921

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001100111001

Octal: 11471

Duodecimal: 2A21

Hexadecimal: 1339

Square: 24216241

Square Root: 70.14983962918234

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

Hex (or centered hexagonal) numbers: 3·n*(n+1)+1 (crystal ball sequence for hexagonal lattice). A3215

a(n) = 2·a(n-1) + 3·a(n-2), with a(0)=0, a(1)=1. A15518

Generalized 28-gonal (or icosioctagonal) numbers: m*(13·m - 12) with m = 0, +1, -1, +2, -2, +3, -3, ... A303812

a(n) = (1 - (-3)ⁿ)/4. A14983

Sum of cubes of primes dividing n. A5064

Number of regions that the line segments in A091908(n) cut the equilateral triangle into. A92098

7 times triangular numbers: 7·n*(n+1)/2. A24966

Number of distinct paths of length 2n+1 along edges of a unit cube between two fixed adjacent vertices. A66443

Gaussian binomial coefficient [ n,8 ] for q=-3. A15357

Numbers m such that the factorizations of m..m+3 have the same number of primes (including multiplicities). A45940