Properties of the Number 74689

Seventy-Four Thousand Six Hundred Eighty-Nine

Basics

Value: 74688 → 74689 → 74690

Parity: odd

Prime: No

Previous Prime: 74687

Next Prime: 74699

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 19 × 3931

Divisors: 1, 19, 3931, 74689

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010001111000001

Octal: 221701

Duodecimal: 37281

Hexadecimal: 123c1

Square: 5578446721

Square Root: 273.2928831857866

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)=Equals two maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal, diagonal and antidiagonal neighbors in a random 0..3 nXk array. A220959

a(n) = numerator(-1/n + ∑_k=1..n 2^k-1/k). A332786

Equals two maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal, diagonal and antidiagonal neighbors in a random 0..3 nX3 array. A220957

Permutation of natural numbers induced by the Catalan bijection gmA074689! acting on the parenthesizations encoded by A014486/A063171. A74689