Properties of the Number 42197

Forty-Two Thousand One Hundred Ninety-Seven

Basics

Value: 42196 → 42197 → 42198

Parity: odd

Prime: Yes

Previous Prime: 42193

Next Prime: 42209

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 42197

Divisors: 1, 42197

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010011010101

Octal: 122325

Duodecimal: 20505

Hexadecimal: a4d5

Square: 1780586809

Square Root: 205.41908382621125

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

Primes of form n² + 14641. A256839

Numbers which are primes and which remain prime for three successive applications of incrementing each digit by 2 with carries ignored. A88787

Seventh prime p such that (p+n)²+n is prime but (p+j)²+j is not prime for all 0<j<n. A238679

a(n) = smallest prime q > a(n-1) such that 2·prime(n)*q^prime(n)+1 is also prime. A225747

Primes p such that if q is the next prime, p+A004086(q) and q+A004086(p) are prime. A351728

Primes of the form 2k² + k + 2. A249606

Denominators of continued fraction convergents to sqrt(623). A42197

Number of 4Xn binary arrays without the pattern 0 1 0 antidiagonally or horizontally. A189066