Properties of the Number -17800

Seventeen Thousand Eight Hundred

Basics

Value: -17801 → -17800 → -17799

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 5 ² × 89

Divisors: 1, 2, 4, 5, 8, 10, 20, 25, 40, 50

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100010110001000

Octal: -42610

Duodecimal: -A374

Hexadecimal: -4588

Square: 316840000

Square Root: 133.41664064126334

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 partitions of n with designated summands. A77285

T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero. A301999

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..1 introduced in row major order. A203923

G.f. A(x) satisfies A(x) = 1 + x·A(x)⁴ / (1 - x·A(x)²). A364792

Total sum of the numbers of partitions with positive k-th ranks of all partitions of n. A208479

a(n) = 36·n² - 55·n + 21. A157262

Fibonacci sequence beginning 13, 10. A206608

Numbers m > 0 that have a divisor d > 1 with binomial(m+d, d) == 1 mod m. A290040

Numbers n with property that n² is a sum of some 70 successive primes. A166256

Numbers k such that 183·2^k+1 is prime. A32468