Properties of the Number 43978

Forty-Three Thousand Nine Hundred Seventy-Eight

Basics

Value: 43977 → 43978 → 43979

Parity: even

Prime: No

Previous Prime: 43973

Next Prime: 43987

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 × 11 × 1999

Divisors: 1, 2, 11, 22, 1999, 3998, 21989, 43978

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010101111001010

Octal: 125712

Duodecimal: 2154A

Hexadecimal: abca

Square: 1934064484

Square Root: 209.70932263492722

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 non-self-conjugate solutions of X + Y = 2Z (integer, disjoint triples from {1,2,3,...,3n}). A282619

Triangle read by rows: rows = inverse binomial transforms of columns of A309220. A118980

Numbers k such that k and k + 1 have the same norm of the sum of divisors in Gaussian integers. A332315

G.f. A(x) satisfies A(x) = (1 + x⁴) * (1 + x·A(x)³). A379160

Numbers k such that 2 and 6 occur juxtaposed in the base-9 representation of k but not of k+1. A43978