Properties of the Number 20337

Twenty Thousand Three Hundred Thirty-Seven

Basics

Value: 20336 → 20337 → 20338

Parity: odd

Prime: No

Previous Prime: 20333

Next Prime: 20341

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 6779

Divisors: 1, 3, 6779, 20337

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100111101110001

Octal: 47561

Duodecimal: B929

Hexadecimal: 4f71

Square: 413593569

Square Root: 142.60785392116384

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

Expansion of ∏_{i>=1, j>=0} (1 + x^{i·6^j}). A373220

Semiprimes in A056109. A113528

Numbers of the form HMMSS with primes H < 24 and MM, SS < 60, for which the number of seconds after midnight, 3600·H+60·MM+SS, is also prime. A295011

Prime time numbers on 6-digit clocks: numbers of the form HMMSS where H, MM, SS are primes, H < 24, MM and SS < 60. A295014

Numbers k such that binomial(5k, k) + 1 is prime. A125243

Numbers whose square root in base 10 starts with 10 distinct digits. A113507

Triangle T₃(n, m), the number of surjective multi-valued functions from {1, 1, 1, 2, 3, ..., n-2} to {1, 2, 3, ..., m} by rows (n >= 1, 1 <= m <= n). A172107

Square array A(n,k), n>=0, k>=0, read by antidiagonals downwards, where column k is the expansion of 1/(1 - k·x) * ∏_j=0..k-1 (1 + j·x)/(1 - j·x). A383818

Least k such that the first k terms of A006928 contain n more 2's than 1's. A25507

Indices in A006928 where the imbalance between 1's and 2's sets a new record. A274775