Properties of the Number 70966

Seventy Thousand Nine Hundred Sixty-Six

Basics

Value: 70965 → 70966 → 70967

Parity: even

Prime: No

Previous Prime: 70957

Next Prime: 70969

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 7 × 37 × 137

Divisors: 1, 2, 7, 14, 37, 74, 137, 259, 274, 518

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001010100110110

Octal: 212466

Duodecimal: 3509A

Hexadecimal: 11536

Square: 5036173156

Square Root: 266.3944443865149

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

a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (Lucas numbers), t = (odd natural numbers). A24473

a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (Lucas numbers), t = (odd natural numbers). A25093

Revert transform of (3x² - 1)/(-1 - x + 2x² + x³). A49129

a(n) = ∑_{k∣n, k<=sqrt(n)} φ(k); where the sum is over the positive divisors, k, of n, which are <= the square root of n; and φ(k) is the Euler totient function. A70966