Properties of the Number 42546

Forty-Two Thousand Five Hundred Forty-Six

Basics

Value: 42545 → 42546 → 42547

Parity: even

Prime: No

Previous Prime: 42533

Next Prime: 42557

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 7 × 1013

Divisors: 1, 2, 3, 6, 7, 14, 21, 42, 1013, 2026

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 1010011000110010

Octal: 123062

Duodecimal: 20756

Hexadecimal: a632

Square: 1810162116

Square Root: 206.26681749617413

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

Triangle, read by rows, T(n, k) = 2·binomial(n, k)*binomial(n+1, k)/(k+1) - (k! - n! + (n-k)!). A176152

p-INVERT of (1,0,1,0,0,0,0,...), where p(S) = 1 - S³. A291723

Numbers k such that usigma(k) is a square and sets a new record for such squares. A64443

Square array read by antidiagonals, where the top row is the powers of 2 (A000079) and the other numbers are the sum of the neighbors in the preceding row. A375723

Numerators of continued fraction convergents to sqrt(802). A42546

Number of nX5 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0 or 2 neighboring 1s. A296332