Properties of the Number -18754

Eighteen Thousand Seven Hundred Fifty-Four

Basics

Value: -18755 → -18754 → -18753

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 9377

Divisors: 1, 2, 9377, 18754

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -100100101000010

Octal: -44502

Duodecimal: -AA2A

Hexadecimal: -4942

Square: 351712516

Square Root: 136.94524453225822

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

Beach-Williams Pell numbers of type 2p (p prime). A212074

T(n,k)=Number of nXk 0..2 arrays with every element equal to some element at offset (-1,0) (-1,1) (0,-1) (0,1) or (1,0) both plus 1 mod 3 and minus 1 mod 3, with new values introduced in order 0..2. A277659

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A320402

Number of partitions p of n such that (sum of parts with multiplicity 1) < (sum of all other parts). A240448

Triangle T, read by rows, where column k of T = column 0 of T^k+1 for k>0, with column 0 of T = column 0 of T³ shift right. A135902

Column 3 of triangle A135902. A135905

Numbers m such that σ(m+1)+σ(m-1) = 6*φ(m). A67243

1/16 the number of (n+1) X 4 0..3 arrays with all 2 X 2 subblocks having the same four values. A184033

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 11. A31599

Numbers k such that φ(k) divides (σ(k+1) + σ(k-1)). A67244