Properties of the Number 42423

Forty-Two Thousand Four Hundred Twenty-Three

Basics

Value: 42422 → 42423 → 42424

Parity: odd

Prime: No

Previous Prime: 42409

Next Prime: 42433

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 79 × 179

Divisors: 1, 3, 79, 179, 237, 537, 14141, 42423

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 1010010110110111

Octal: 122667

Duodecimal: 20673

Hexadecimal: a5b7

Square: 1799710929

Square Root: 205.9684441850256

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

Numbers k such that σ(k) = σ(k+4). A15863

Absolute discriminants of complex quadratic fields with 3-class group of type (3,3) and Hilbert 3-class field tower of exact length 2. A242864

Absolute discriminants of complex quadratic fields with 3-class group of type (3,3) and 3-principalization type (2241). A247689

Indices of the start of 10 successive distinct digits in the decimal expansion of e (2.718281828...). A258166

Absolute discriminants of complex quadratic fields with 3-class group of type (3,3) whose second 3-class group is located on the sporadic part of the coclass graph G(3,2) outside of coclass trees. A247691

Numbers k such that 4·10^k + 93 is prime. A281829

Denominators of continued fraction convergents to sqrt(739). A42423

G.f. A(x) satisfies: Series_Reversion( A(x)/(1+x)³ ) = A(x)/(1-x)³. A277177