Properties of the Number 78943

Seventy-Eight Thousand Nine Hundred Forty-Three

Basics

Value: 78942 → 78943 → 78944

Parity: odd

Prime: No

Previous Prime: 78941

Next Prime: 78977

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 89 × 887

Divisors: 1, 89, 887, 78943

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: Yes

Tetrahedral: No

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Representations

Binary: 10011010001011111

Octal: 232137

Duodecimal: 39827

Hexadecimal: 1345f

Square: 6231997249

Square Root: 280.96796970473343

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

Composite and every divisor (except 1) contains the digit 8. A62678

Heptagonal numbers (A000566) in which parity of digits alternates. A297646

Heptagonal numbers (A000566) that are semiprimes (A001358). A259676

a(1)=1; a(n+1) is either a(n)-n or a(n)+n, where we choose the smallest positive integer that's not among the values a(1), ..., a(n). A78943