Properties of the Number 42947

Forty-Two Thousand Nine Hundred Forty-Seven

Basics

Value: 42946 → 42947 → 42948

Parity: odd

Prime: No

Previous Prime: 42943

Next Prime: 42953

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 67 × 641

Divisors: 1, 67, 641, 42947

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010011111000011

Octal: 123703

Duodecimal: 20A2B

Hexadecimal: a7c3

Square: 1844444809

Square Root: 207.2365797826243

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

Replace 3ⁱ with nⁱ in ternary representation of n. A193760

Numbers k such that (44·10^k - 719)/9 is prime. A295968

Gilda's numbers: numbers k such that if a Fibonacci sequence is formed with first term = a certain absolute value between decimal digits in k (A007953) and second term = sum of decimal digits in k (A040997), then k itself occurs as a term in the sequence. A42947