Properties of the Number 18552

Eighteen Thousand Five Hundred Fifty-Two

Basics

Value: 18551 → 18552 → 18553

Parity: even

Prime: No

Previous Prime: 18541

Next Prime: 18553

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ³ × 3 × 773

Divisors: 1, 2, 3, 4, 6, 8, 12, 24, 773, 1546

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100100001111000

Octal: 44170

Duodecimal: A8A0

Hexadecimal: 4878

Square: 344176704

Square Root: 136.20572675185136

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

Total number of parts in all overpartitions of n. A235792

Expansion of e.g.f. sin(x·tan(x/2)) (even powers only). A296841

Expansion of 1/sqrt(1-4·x²-4·x³). A115962

Let (u1,u2) be successive untouchable numbers such that φ(u1) = φ(u2); sequence gives values of u2. A48190

Numbers k that divide floor((3/2)^k) = A002379(k). A73633

Number of (n+1)X(3+1) 0..1 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically. A253693

The number phi₃(n) of Frobenius partitions that allow up to 3 repetitions of an integer in a row. A53992

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically. A253698

Lexicographically earliest infinite sequence of distinct positive numbers such that, for n>2, a(n) has a common factor with the second largest previous term but not with the largest previous term. A351497

Number of nX5 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A303194