Properties of the Number 31040

Thirty-One Thousand Forty

Basics

Value: 31039 → 31040 → 31041

Parity: even

Prime: No

Previous Prime: 31039

Next Prime: 31051

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2 ⁶ × 5 × 97

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100101000000

Octal: 74500

Duodecimal: 15B68

Hexadecimal: 7940

Square: 963481600

Square Root: 176.1817243643619

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

Number of degree-n permutations of order exactly 3. A1471

Card-matching numbers (Dinner-Diner matching numbers) for 5 kinds of cards. A59071

Gaps of 9 in sequence A038593 (upper terms). A38658

Number of atoms in cluster of n layers around C₆₀. A63498

G.f. satisfies: AGM(1,A(x)) = 1 + 4·x. A171188

Numbers k such that 303·2^k+1 is prime. A322916

Numbers k for which there exists m such that the sum from 1 to m and the sum from m + 1 to k are both perfect squares. A388659

Penrice Christmas gift numbers, Card-matching numbers (Dinner-Diner matching numbers). A59057

a(n) = number of elements of order n in simple group Alt(10) of order 1814400. A145770

Position of n-th 4 in A031035. A31040