Properties of the Number 42127

Forty-Two Thousand One Hundred Twenty-Seven

Basics

Value: 42126 → 42127 → 42128

Parity: odd

Prime: No

Previous Prime: 42101

Next Prime: 42131

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 103 × 409

Divisors: 1, 103, 409, 42127

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1010010010001111

Octal: 122217

Duodecimal: 20467

Hexadecimal: a48f

Square: 1774684129

Square Root: 205.24862971527972

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

NSW pseudoprimes: odd composite numbers k such that A002315((k-1)/2) == 1 (mod k). A330276

Intersection of A099011 and A327651. A327652

Strong pseudoprimes to base 17. A20243

Number of integers in n-th generation of tree T(-3/4) defined in Comments. A274151

Strong pseudoprimes to base 20. A20246

Strong pseudoprimes to base 24. A20250

Strong pseudoprimes to base 25. A20251

Strong pseudoprimes to base 30. A20256

Strong pseudoprimes to base 36. A20262

Strong pseudoprimes to base 45. A20271