Properties of the Number 31038

Thirty-One Thousand Thirty-Eight

Basics

Value: 31037 → 31038 → 31039

Parity: even

Prime: No

Previous Prime: 31033

Next Prime: 31039

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 7 × 739

Divisors: 1, 2, 3, 6, 7, 14, 21, 42, 739, 1478

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100100111110

Octal: 74476

Duodecimal: 15B66

Hexadecimal: 793e

Square: 963357444

Square Root: 176.1760483153144

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 ∑_n>=0 (qⁿ / ∏_k=1..n+4 (1 - q^k)). A35300

a(n) = ∑_i=0..n digsum₇(i)⁴, where digsum₇(i) = A053828(i). A231679

a(n) = ∑_i=0..n digsum₈(i)⁴, where digsum₈(i) = A053829(i). A231683

Numbers k such that 12^k + 5 is prime. A137652

Number of nX3 0..1 arrays with every element unequal to 1, 2, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero. A316171

Numbers n such that 10·n^k + 1 is composite for all k > 0. A88783

Position of n-th 2 in A031035. A31038