Properties of the Number 31057

Thirty-One Thousand Fifty-Seven

Basics

Value: 31056 → 31057 → 31058

Parity: odd

Prime: No

Previous Prime: 31051

Next Prime: 31063

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 13 × 2389

Divisors: 1, 13, 2389, 31057

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 111100101010001

Octal: 74521

Duodecimal: 15B81

Hexadecimal: 7951

Square: 964537249

Square Root: 176.22996340009834

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

Partial sums of A080182. A80183

Number of nonempty subsets of {1, 2, ..., n} with GCD equal to 1 and containing the sum of any two elements whenever it is at most n. A358392

Interprimes (A024675) which are of the form s·prime, s=13. A75288

Number of nX6 0..1 arrays with every element unequal to 0, 1, 2 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A318073

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 39. A31627

Multiplicity of highest weight (or singular) vectors associated with character chi₉₁ of Monster module. A34479

Write 2n-1 in base 8 and juxtapose. A31057

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A318075