Properties of the Number 84780

Eighty-Four Thousand Seven Hundred Eighty

Basics

Value: 84779 → 84780 → 84781

Parity: even

Prime: No

Previous Prime: 84761

Next Prime: 84787

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ³ × 5 × 157

Divisors: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100101100101100

Octal: 245454

Duodecimal: 41090

Hexadecimal: 14b2c

Square: 7187648400

Square Root: 291.1700534052223

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 refinement-ordered pairs of strict integer partitions of n. A317142

Powers of cube root of 6 rounded to nearest integer. A17992

Powers of cube root of 6 rounded up. A17993

a(n) = sum of absolute-valued coefficients of (1+3·x-x²)ⁿ. A84780