Properties of the Number -1173

One Hundred Seventy-Three

Basics

Value: -1174 → -1173 → -1172

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 17 × 23

Divisors: 1, 3, 17, 23, 51, 69, 391, 1173

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10010010101

Octal: -2225

Duodecimal: -819

Hexadecimal: -495

Square: 1375929

Square Root: 34.249087579087416

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

a(1) = 1; a(n) = -∑_{k = 1..n-1} (n+k)!a(k)/(2k)!. A7683

Triangle inverse to that in A046899. A46900

Numerator of Bernoulli(n, -6/11). A159306

A symmetrical triangle sequence based on:q=1/12;t(n,m,q)=12*(Binomial[n, m]*(1 - q) + (((n + m + 1)!/(n + 1)!* m!) + ((2·n - m + 1)!/(n + 1)!*(n - m)!))*q). A174945

a(n) = n*(4·n+1). A7742

a(n) = n*(n+5)/2. A55998

Expansion of g.f. x*(1 + 3·x)/((1 + x)*(1 - x)³). A35608

D-toothpick sequence of the second kind (see Comments lines for definition). A194270

Even triangular numbers halved. A74378

Multiples of 17 containing a 17 in their decimal representation. A121037