Properties of the Number 76780

Seventy-Six Thousand Seven Hundred Eighty

Basics

Value: 76779 → 76780 → 76781

Parity: even

Prime: No

Previous Prime: 76777

Next Prime: 76781

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 5 × 11 × 349

Divisors: 1, 2, 4, 5, 10, 11, 20, 22, 44, 55

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010101111101100

Octal: 225754

Duodecimal: 38524

Hexadecimal: 12bec

Square: 5895168400

Square Root: 277.09204246964583

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

Number of partitions of n such that (least part) <= (multiplicity of greatest part). A240179

Number of squares (of nonnegative integers) that require n binary (base-2) digits. A126726

Number of triangular numbers T(k) between powers of 2, 2^n-1 < T(k) <= 2ⁿ. A190660

Let u(1)=u(2)=1, u(n)=(2^floor(u(n-1)/2)+1)/u(n-2) then a(n) = denominator of u(n). A76780