Properties of the Number -918

Nine Hundred Eighteen

Basics

Value: -919 → -918 → -917

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 17

Divisors: 1, 2, 3, 6, 9, 17, 18, 27, 34, 51

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -1110010110

Octal: -1626

Duodecimal: -646

Hexadecimal: -396

Square: 842724

Square Root: 30.298514815086232

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

Row sums of A291940. A291942

Triangle T(n, m) appearing in the expansion of Jacobi's elliptic function cn(u, k) divided by cos(v) in terms of the Jacobi nome q and even powers of 2·cos(v) with v = u/((2/π)*K(k)). A275791

Toothpick sequence starting at the outside corner of an infinite square from which protrudes a half toothpick. A153006

Numbers k such that k⁸ + 1 is prime. A6314

Square array A(n,k), n>=0, k>=0, read by antidiagonals, where column k is Euler transform of (j->k). A144064

6 times triangular numbers: a(n) = 3·n*(n+1). A28896

Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2), where a(0) = 1, a(1) = 2, b(0) = 3. A294532

Multiples of 9 containing a 9 in their decimal representation. A121029

Multiples of 18 containing a 18 in their decimal representation. A121038

Numbers whose negated unsorted prime signature is not unimodal. A332642