Properties of the Number 2107

Two Thousand One Hundred Seven

Basics

Value: 2106 → 2107 → 2108

Parity: odd

Prime: No

Previous Prime: 2099

Next Prime: 2111

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 7 ² × 43

Divisors: 1, 7, 43, 49, 301, 2107

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100000111011

Octal: 4073

Duodecimal: 1277

Hexadecimal: 83b

Square: 4439449

Square Root: 45.902069670114

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

Hex (or centered hexagonal) numbers: 3·n*(n+1)+1 (crystal ball sequence for hexagonal lattice). A3215

a(n) = n*(n + 6). A28560

Ruth-Aaron numbers (1): sum of prime divisors of n = sum of prime divisors of n+1. A6145

Numerator of 1/9 - 1/n². A61039

Generalized 25-gonal (or icosipentagonal) numbers: m*(23·m - 21)/2 with m = 0, +1, -1, +2, -2, +3, -3, ... A303304

Number of regions that the line segments in A091908(n) cut the equilateral triangle into. A92098

a(n) = T(2n,n-1), T given by A026519. A26526

Number of integer partitions of n where the parts have the same median as the distinct parts. A360245

Recursive sequence; one more than maximum of products of pairs of previous terms with indices summing to current index. A91980

Numbers such that the arithmetic mean of the cubes of their prime factors (taken with multiplicity) is a prime. A134619