Properties of the Number 15144

Fifteen Thousand One Hundred Forty-Four

Basics

Value: 15143 → 15144 → 15145

Parity: even

Prime: No

Previous Prime: 15139

Next Prime: 15149

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ³ × 3 × 631

Divisors: 1, 2, 3, 4, 6, 8, 12, 24, 631, 1262

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11101100101000

Octal: 35450

Duodecimal: 8920

Hexadecimal: 3b28

Square: 229340736

Square Root: 123.06096050332128

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

T(n,k) = Number of horizontal and antidiagonal neighbor colorings of the odd squares of an n X k array with new integer colors introduced in row major order. A216084

T(n,k) = Number of horizontal and antidiagonal neighbor colorings of the even squares of an n X k array with new integer colors introduced in row major order. A216338

Numbers which are the sum of their proper divisors containing the digit 5. A59464

G.f.: A(x) = exp( ∑_n>=1 3·A038500(n) * xⁿ/n ), where A038500 is the highest power of 3 dividing n. A161809

McKay-Thompson series of class 13A for the Monster group with a(0) = -2. A34318

Number of ways writing n² as a sum of four squares: a(n) = A000118(n²). A267326

McKay-Thompson series of class 13A for the Monster group with a(0) = 0. A34319

a(n) = 1728·n - 408. A157266

Number of triangular regions in a "frame" of size n X n (see Comments in A331776 for definition), divided by 4. A332595

Triangle T(n,c) counting Motzkin Paths of length n with c sections starting with an up-step at level 0. A348869