Properties of the Number 31406

Thirty-One Thousand Four Hundred Six

Basics

Value: 31405 → 31406 → 31407

Parity: even

Prime: No

Previous Prime: 31397

Next Prime: 31469

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 41 × 383

Divisors: 1, 2, 41, 82, 383, 766, 15703, 31406

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111101010101110

Octal: 75256

Duodecimal: 16212

Hexadecimal: 7aae

Square: 986336836

Square Root: 177.2173806374533

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

Sum of the squarefree parts of the partitions of n into 9 parts. A309485

Positions of records in A249431. A249432

a(n) = 529n² - 312n + 46. A156841

The smallest number in base n such that two digits (and no fewer) need to be changed to get a prime. A370531

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 2, 3 or 6 king-move adjacent elements, with upper left element zero. A304141

Numbers k such that the continued fraction for sqrt(k) has even period 2·m and the m-th term of the periodic part is 3. A31406

Triangle T(n,m)= A141686(n,m)*(m-1)! read by rows, n>=1, 1<=m<=n. A177428