Properties of the Number 31117

Thirty-One Thousand One Hundred Seventeen

Basics

Value: 31116 → 31117 → 31118

Parity: odd

Prime: No

Previous Prime: 31091

Next Prime: 31121

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 29 ² × 37

Divisors: 1, 29, 37, 841, 1073, 31117

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100110001101

Octal: 74615

Duodecimal: 16011

Hexadecimal: 798d

Square: 968267689

Square Root: 176.40011337864837

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

Composite numbers for which A324644(n)/A324198(n) = 2 and σ(n) == 2 (mod 4). A371082

Maximal non-semiprime number which is a "preprime" of the n-th kind (defined in comment in A247395). A247834

a(n) is the number of closed binary operations on n elements, labeled, that satisfy both x(yz) = (xy)z and x(yz) = xz identically. A389829

a(n) = (5·n + 1)² + 4·n + 1. A7533

Polynomial (1/3)*n³ + (9/2)*n² + (85/6)*n - 2. A73775

Greatest positive integer whose weakly increasing prime indices have zero-based weighted sum (A359674) equal to n. A359757

Numbers k such that σ(k) = ψ(k) + τ(k) + ω(k)⁵. A391447

Numbers k such that σ(k) = ψ(k) + τ(k)² + ω(k). A392518

Sum of the digits of 5^10ⁿ. A124306

Prime shift array for A332818: Square array read by antidiagonals: A(1,col) = 2·col, and for row > 1, A(row,col) = A332818(A(row-1,col)). A389088