Properties of the Number 77840

Seventy-Seven Thousand Eight Hundred Forty

Basics

Value: 77839 → 77840 → 77841

Parity: even

Prime: No

Previous Prime: 77839

Next Prime: 77849

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ⁴ × 5 × 7 × 139

Divisors: 1, 2, 4, 5, 7, 8, 10, 14, 16, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011000000010000

Octal: 230020

Duodecimal: 39068

Hexadecimal: 13010

Square: 6059065600

Square Root: 278.99820787954894

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) = 4*(3·n+1)*(3·n+2). A144410

Moments of generalized Motzkin paths. A53441

Number of (n+2) X (2+2) 0..1 arrays with every 2 X 2 and 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally and vertically. A253504

Terminating decimals of length n of form p/5^q using at most one of each nonzero digit. A27905

Expansion of (1-x)/(1-2·x-3·x²-3·x³). A77840