Properties of the Number 31438

Thirty-One Thousand Four Hundred Thirty-Eight

Basics

Value: 31437 → 31438 → 31439

Parity: even

Prime: No

Previous Prime: 31397

Next Prime: 31469

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 11 × 1429

Divisors: 1, 2, 11, 22, 1429, 2858, 15719, 31438

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111101011001110

Octal: 75316

Duodecimal: 1623A

Hexadecimal: 7ace

Square: 988347844

Square Root: 177.30764224928376

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

Expansion of ∏_m>=1 (1+q^m)^-22. A22617

Number of lower triangular n X n arrays colored with integers 0 upwards introduced in row major order, with no element equal to any diagonal or antidiagonal neighbor, and containing the value n(n+1)/2-2. A211958

Number of length n strings on the alphabet {0,1,2,3} with digit sum at most 4. A363256

Number of nonisomorphic proper regular linear spaces, PRLIN(n). A31438

Number of nX4 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX4 array. A219848