Properties of the Number 67404

Sixty-Seven Thousand Four Hundred Four

Basics

Value: 67403 → 67404 → 67405

Parity: even

Prime: No

Previous Prime: 67399

Next Prime: 67409

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 41 × 137

Divisors: 1, 2, 3, 4, 6, 12, 41, 82, 123, 137

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000011101001100

Octal: 203514

Duodecimal: 33010

Hexadecimal: 1074c

Square: 4543299216

Square Root: 259.62280331280607

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 10^2·k+1 - 10^k - 1 is prime. A183187

Triangle read by rows: T(n,k) = number of linear chord diagrams with n chords such that every chord has length at least k (1 <= k <= n). A293157

a(n) = sum of the perimeters of the Ferrers boards of the partitions of n. Also, sum of the perimeters of the diagrams of the regions of the set of partitions of n. A278355

Sum of the 4th powers of the divisors of n is divisible by n. A46764

Numbers m such that DivisorSigma(8·k-4, m) mod m = 0 holds presumably for all k; that is, (8·k-4)-power-sums of divisors of m are divisible by m for all k. A66291

k such that 10^2·k+1-j·10^k-1 is prime for some j = 1, 2, 4, 5, 7 or 8. A213881

Numbers k such that R_k + 20 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A256722

Fourth column of triangle A067402. A67404