Properties of the Number 38423

Thirty-Eight Thousand Four Hundred Twenty-Three

Basics

Value: 38422 → 38423 → 38424

Parity: odd

Prime: No

Previous Prime: 38393

Next Prime: 38431

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 7 × 11 × 499

Divisors: 1, 7, 11, 77, 499, 3493, 5489, 38423

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001011000010111

Octal: 113027

Duodecimal: 1A29B

Hexadecimal: 9617

Square: 1476326929

Square Root: 196.01785632946812

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 sum of divisors of k² is a square. A8847

Minimum number k for which the digital sum of k·n is 2·n. A147822

Odd numbers n such that σ(σ(n²)) is odd. A234641

Number of binary words of length n with exactly one occurrence of subword 010 and exactly two occurrences of subword 101. A260505

a(n) = number of (s(0), s(1), ..., s(n)) such that s(i) is an integer, s(0) = 0, |s(1)| = 1, |s(i) - s(i-1)| <= 1 for i >= 2, s(n) = 2. Also a(n) = T(n,n-2), where T is the array defined in A025177. A25180

a(n) = 49·n² + 7. A158481

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 56. A31734

Number of nX3 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A303237

a(n) = T(n,0) + T(n,1) + ... + T(n,[ n/2 ]), T given by A026659. A26667

Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 1101-0111 pattern in any orientation. A146728