Properties of the Number 42494

Forty-Two Thousand Four Hundred Ninety-Four

Basics

Value: 42493 → 42494 → 42495

Parity: even

Prime: No

Previous Prime: 42491

Next Prime: 42499

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 21247

Divisors: 1, 2, 21247, 42494

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010111111110

Octal: 122776

Duodecimal: 20712

Hexadecimal: a5fe

Square: 1805740036

Square Root: 206.14072862973973

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

T(n,k)=Number of nXk 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A279741

Number of Carlitz compositions c of n such that the sequence of ascents and descents of c forms a Dyck path. A304778

Numerator of b(n) = ∑_k=1..n (-1)^k+1/k*∑_i=0..k-1 (-1)ⁱ/(2·i+1). A73594

Number of nX7 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A279740

Number of 4Xn 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A279744

Numerators of continued fraction convergents to sqrt(775). A42494