ℕ atory
Play Now

Properties of the Number 20312

Twenty Thousand Three Hundred Twelve

Basics

Value: 20311 → 20312 → 20313

Parity: even

Prime: No

Previous Prime: 20297

Next Prime: 20323

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2 3 × 2539

Divisors: 1, 2, 4, 8, 2539, 5078, 10156, 20312

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100111101011000

Octal: 47530

Duodecimal: B908

Hexadecimal: 4f58

Square: 412577344

Square Root: 142.52017401055895

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

The successive approximations up to 7n for 7-adic integer 31/5. A309451
T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A317565
Numbers n such that n and n+1 are differences between 2 positive cubes in at least one way. A38594
Third Lie-Betti number of a path graph on n vertices. A361230
Triangular array related to tennis ball problem, read by rows. A79521
Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A317561
Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 2,0,3,1. A37729
Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A317559
Strong pseudoprimes to base 86. A20312