Properties of the Number 31400

Thirty-One Thousand Four Hundred

Basics

Value: 31399 → 31400 → 31401

Parity: even

Prime: No

Previous Prime: 31397

Next Prime: 31469

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 5 ² × 157

Divisors: 1, 2, 4, 5, 8, 10, 20, 25, 40, 50

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111101010101000

Octal: 75250

Duodecimal: 16208

Hexadecimal: 7aa8

Square: 985960000

Square Root: 177.2004514666935

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

Smallest number requiring n steps to reach a prime under the "add a digit" process described in A241180. A241182

a(n) = n³ + (n+2)³. A153976

Second elementary symmetric function of the first n terms of (1,1,2,2,3,3,4,4,...). A203246

Number of (w,x,y,z) with all terms in {1,...,n} and w+x<y+z. A212523

Expansion of (theta₃(z)*theta₃(11z) + theta₂(z)*theta₂(11z))⁴. A28612

Number of concave kites (darts or arrowheads) on an n X n grid (or geoboard). A173502

Smallest number requiring n steps to reach a prime under the "add a digit" process described in A241181. A336382

Number of triangles a queen can make (starting anywhere) on an n X n board. A30117

Number of length 2+3 0..n arrays with some disjoint pairs in every consecutive four terms having the same sum. A247534

a(n) = n*(n+1)*(13·n+2)/6. A257093