Properties of the Number 75012

Seventy-Five Thousand Twelve

Basics

Value: 75011 → 75012 → 75013

Parity: even

Prime: No

Previous Prime: 75011

Next Prime: 75013

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 7 × 19 × 47

Divisors: 1, 2, 3, 4, 6, 7, 12, 14, 19, 21

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010010100000100

Octal: 222404

Duodecimal: 374B0

Hexadecimal: 12504

Square: 5626800144

Square Root: 273.8831867785973

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

Antidiagonal sums of triangular array T defined in A014430: T(j,k) = binomial(j+1, k) - 1 for 1 <= k <= j. A129696

Number of interior points that are the intersections of exactly two chords in the configuration A006561(n). A292104

a(1) = b(1) = 0; for n > 1, b(n) = b(n-1) + n-1 + a(n-1) and a(n) = a(n-1) + n-1 + b(n). A152891

a(n) = Fibonacci(n+7) - Fibonacci(7). A180672

s(k)-s(j), where the pairs (k,j) are given by A205857 and A205858, and s(k) denotes the (k+1)-st Fibonacci number. A205859

s(k)-s(j), where the pairs (k,j) are given by A205862 and A205863, and s(k) denotes the (k+1)-st Fibonacci number. A205864

Nonnegative values·of solutions (x, y) to the Diophantine equation x² + (x+497)² = y². A207077

a(n) = A253100(2ⁿ-1). A253101

The number of interior points that are intersections of exactly two chords for a 2n-gon where all its vertices are joined by lines (cf. A006561). A352144

a(n) = ∑_{i=1..floor((n+2)/4)} a(2i-1)*a(n-2i+1), with a(1)=a(2)=1 and a(3)=4. A24949