Properties of the Number 75712

Seventy-Five Thousand Seven Hundred Twelve

Basics

Value: 75711 → 75712 → 75713

Parity: even

Prime: No

Previous Prime: 75709

Next Prime: 75721

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ⁶ × 7 × 13 ²

Divisors: 1, 2, 4, 7, 8, 13, 14, 16, 26, 28

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10010011111000000

Octal: 223700

Duodecimal: 37994

Hexadecimal: 127c0

Square: 5732306944

Square Root: 275.1581363507174

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

Bisection of A002470. A2287

a(1) = 13; for n > 0, a(n+1) = a(n) * sum of digits of a(n). A47903

Number of n X 6 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 1 vertically. A208377

a(n) = (4·n+8)*n². A258617

Rearrangement of primes into Germain groups (or Cunningham chains). A75712

Array read by ascending antidiagonals: A(n, k) = (n + 1)*binomial(2·k + n - 1, k - 1)² / (2·k + n - 1) for k > 0, and A(n, 0) = 0. A378062

Triangle read by rows: expansion of Q(y, n), where Q(y,0)=1; Q(y,1)=y; Q(y, n) = -(-2 + 2*(1 - y) - 2*(1 - y)*Q(y, n - 1) + Q(y, n - 2)). A136202