Properties of the Number 20934

Twenty Thousand Nine Hundred Thirty-Four

Basics

Value: 20933 → 20934 → 20935

Parity: even

Prime: No

Previous Prime: 20929

Next Prime: 20939

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 1163

Divisors: 1, 2, 3, 6, 9, 18, 1163, 2326, 3489, 6978

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101000111000110

Octal: 50706

Duodecimal: 10146

Hexadecimal: 51c6

Square: 438232356

Square Root: 144.68586662144995

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 partitions of n having no parts with multiplicity 10. A184645

Sin(n) decreases monotonically to -1. A46964

Numbers k such that k¹² == 1 (mod 13⁴). A56095

Values of z in solutions (x,y,z) to the Diophantine equation x³-x²+y³-y²=z³-z², with 1<x<y<z arranged in order of increasing x. A138669

a(1) = 1, and for each n >=2, a(n) is the smallest number such that 1/cos(a(n)) < 1/cos(k) for all k < n, so that 1/cos(a(1)) > 1/cos(a(2)) > ... > 1/cos(a(n)) > ... A172448

Numbers n such that the decimal equivalent of the binary reflected Gray code representation of n is a palindromic prime. A281382

Row sums of the triangular array A357431. A357417

Number of 3 X 3 matrices with unit determinant and nonnegative integer entries whose sum is n. A361083

Number of series-reduced planted trees with n+9 nodes and 4 internal nodes. A1860

"BGK" (reversible, element, unlabeled) transform of 1,1,1,1,... A32058