Properties of the Number 42071

Forty-Two Thousand Seventy-One

Basics

Value: 42070 → 42071 → 42072

Parity: odd

Prime: Yes

Previous Prime: 42061

Next Prime: 42073

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 42071

Divisors: 1, 42071

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010010001010111

Octal: 122127

Duodecimal: 2041B

Hexadecimal: a457

Square: 1769969041

Square Root: 205.11216443692462

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 p such that continued fraction of (1 + sqrt(p))/2 has period 16 : primes in A146339. A146361

Cyclops Sophie-Germain primes. A183058

Total sum of parts <= n of multiplicity 0 in all partitions of n. A213679

Lesser of twin primes p such that p and p+2 are both in A115591. A367318

Primes of the form n² + π(n). A228865

a(n) is the least prime p such that a(n-1) + p is divisible by a(n-2); a(0)=3, a(1)=5. A338974

Primes p such that p and p+2 are twin primes and also the strings 987654321p and 987654321p+2 are twin primes. A103818

Prime septets of form k, k+2100, k+4200, k+6300, k+8400, k+10500, k+12600. A123107

Denominators of continued fraction convergents to sqrt(559). A42071