Properties of the Number 68421

Sixty-Eight Thousand Four Hundred Twenty-One

Basics

Value: 68420 → 68421 → 68422

Parity: odd

Prime: No

Previous Prime: 68399

Next Prime: 68437

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 22807

Divisors: 1, 3, 22807, 68421

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000101101000101

Octal: 205505

Duodecimal: 33719

Hexadecimal: 10b45

Square: 4681433241

Square Root: 261.57408128482456

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

Number of integer compositions of n whose leaders of weakly decreasing runs are themselves weakly decreasing. A374747

Fourth powers (n·n * n·n) in carryless arithmetic mod 10. A169886

Numbers k such that σ(k) = 6*(k - φ(k)). A68421