Properties of the Number 31017

Thirty-One Thousand Seventeen

Basics

Value: 31016 → 31017 → 31018

Parity: odd

Prime: No

Previous Prime: 31013

Next Prime: 31019

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 ² × 211

Divisors: 1, 3, 7, 21, 49, 147, 211, 633, 1477, 4431

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100100101001

Octal: 74451

Duodecimal: 15B49

Hexadecimal: 7929

Square: 962054289

Square Root: 176.11643875572773

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

Irregular triangle T(n, k) = ((-1)^k+1/2)*∑_j=0..n-2·k binomial(n+2, j)*binomial(n+2, j+k+1)* binomial(n+2, j+2·k+2), read by rows. A158193

a(n)=least k such that the base 7 representation of n begins at s(k), where s=A031016. A31017