Properties of the Number 20331

Twenty Thousand Three Hundred Thirty-One

Basics

Value: 20330 → 20331 → 20332

Parity: odd

Prime: No

Previous Prime: 20327

Next Prime: 20333

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 251

Divisors: 1, 3, 9, 27, 81, 251, 753, 2259, 6777, 20331

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100111101101011

Octal: 47553

Duodecimal: B923

Hexadecimal: 4f6b

Square: 413349561

Square Root: 142.58681565979373

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

First members C of two non-consecutive numbers such that the sums of their cubes are equal to centered cube numbers and to at least one other sum of two cubes, i.e., A = B³ + (B+1)³ = C³ + D³ = E³ + F³. A352222

Number of alternately co-strong compositions of n. A332338

Numbers of the form HMMSS with primes H < 24 and MM, SS < 60, for which the number of seconds after midnight, 3600·H+60·MM+SS, is also prime. A295011

Prime time numbers on 6-digit clocks: numbers of the form HMMSS where H, MM, SS are primes, H < 24, MM and SS < 60. A295014

Smallest n-digit triangular number - smallest n-digit number. A95865

a(n) is the number of distinct five-cuboid combinations that fill an n X n X n cube with cuboids of different volumes. A387040

Numbers whose base-3 representation is the juxtaposition of two identical strings. A20331

Numbers k such that A307437(k) is divisible by 3. A342037