Properties of the Number 23420

Twenty-Three Thousand Four Hundred Twenty

Basics

Value: 23419 → 23420 → 23421

Parity: even

Prime: No

Previous Prime: 23417

Next Prime: 23431

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 5 × 1171

Divisors: 1, 2, 4, 5, 10, 20, 1171, 2342, 4684, 5855

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101101101111100

Octal: 55574

Duodecimal: 11678

Hexadecimal: 5b7c

Square: 548496400

Square Root: 153.03594349041012

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

Powers of ten written in base 8. A468

Number of partitions p of n such that median(p) = multiplicity(min(p)). A240214

Number of 4-bead necklaces labeled with numbers -n..n allowing reversal, with sum zero with no three beads in a row equal. A209345

Numbers n such that d(n-2) = d(n) = d(n+2) = 12 where d(n)=A000005(n). A190645

Numbers 1 through 10000 sorted lexicographically in octal representation (base 8). A190130

Sixth convolution of A002605(n) (generalized (2,2)-Fibonacci), n >= 0, with itself. A73393

Number of (n+1)X(2+1) 0..3 arrays with every 2X2 subblock summing to 5 6 or 7. A251375

a(n) = c([ n/2 ]) + c([ n/3 ]) + ... + c([ n/n ]) for n >=3, where a(1) = 1, a(2) = 3 and c(n) = n-th number not in sequence a( ). A23420