Properties of the Number -17831

Seventeen Thousand Eight Hundred Thirty-One

Basics

Value: -17832 → -17831 → -17830

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 11 × 1621

Divisors: 1, 11, 1621, 17831

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100010110100111

Octal: -42647

Duodecimal: -A39B

Hexadecimal: -45a7

Square: 317944561

Square Root: 133.5327675141948

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 g.f. A(x) = ∏_n>=1 (1 + x^n-1 + x^2·n-1) * (1 + xⁿ + x^2·n-1) * (1 - xⁿ - x^2·n). A370541

Numbers that are the sum of 2 positive 5th powers. A3347

Number of integer partitions of n such that it is not possible to choose a different prime factor of each part. A370593

a(n) = least k such that the remainder when 28^k is divided by k is n. A128368

Numbers of form x⁵ + y⁵, x,y > 0 and x <> y. A88703

G.f.: exp( ∑_n>=1 (xⁿ/n) * ∏_d∣n (1 + d·xⁿ) ). A205478

Integers n of the form 8k+7 that are sum of distinct squares of the form m, m+1, m+2, m+4, where m == 1 (mod 4). A243578

Numbers that are the sum of at most 2 positive 5th powers. A4842

T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, with every occupancy equal to zero or two. A221308

Nonprime numbers with all divisors starting and ending with digit 1. A208261