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Properties of the Number 20883

Twenty Thousand Eight Hundred Eighty-Three

Basics

Value: 20882 → 20883 → 20884

Parity: odd

Prime: No

Previous Prime: 20879

Next Prime: 20887

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 6961

Divisors: 1, 3, 6961, 20883

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101000110010011

Octal: 50623

Duodecimal: 10103

Hexadecimal: 5193

Square: 436099689

Square Root: 144.50951525764663

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 g.f.: ∏n>0 1/(1 - 2n-1*xn). A75900
Number of partitions of n into parts not a multiple of 7. Also number of partitions with at most 6 parts of size 1 and differences between parts at distance 9 are greater than 1. A35985
Number of ways to choose a strict composition of each part of an integer partition of n. A336141
Number of base 31 n-digit numbers with adjacent digits differing by one or less. A126385
Number of set partitions of {1, ..., n} that avoid enhanced 4-crossings (or enhanced 4-nestings). A192855
Number of 2n-bead necklaces labeled with numbers 1..4 not allowing reversal, with neighbors differing by exactly 1. A208723
Number of n X 7 binary arrays without the pattern 0 1 diagonally, vertically or antidiagonally. A188864
Numbers whose base-12 representation has exactly 5 runs. A43654
Numbers k such that 4·10k - 89 is prime. A290475
Ordered long legs of primitive Pythagorean triangles. A20883